CPU Fan!

[JCW]

During normal operation my CPU fan noise slows and speeds up as I do
different operations, such as open a program or a different website. I think
this may be a power supply issue. I am running a 350 watt PS, to run 2 HDs,
CDRW, ZIP drive, 4 extra case fans plus the CPU fan and stock Case fan. Any
help in this would be appreciated. Operation seems normal except the fan
noise slowing and speeding up instead of a steady sound. Thanks
JCW

[Dan DeStefano]

if you have a faulty power supply, usually you will start noticing strange
problems with your machine - it will spontaneously reboot for no reason, it
will lock up intermittently, etc. however, slowing down fans, in some cases,
is by design - to optimize power usage. for example, asus has a feature
called q-fan built into new motherboards that adjusts the fan speeds based
on processor temperature increments, i.e. when the processor heats up, the
fan spins faster, then when the proc cools, the fan slows down. confirm that
your mobo does not employ a similar feature before troubleshooting this
issue further. check the mobo manufacturer websit and your machine BIOS to
see if you have a feature like this.

Dan DeStefano


"JCW" > wrote in message
...
> During normal operation my CPU fan noise slows and speeds up as I do
> different operations, such as open a program or a different website. I
think
> this may be a power supply issue. I am running a 350 watt PS, to run 2
HDs,
> CDRW, ZIP drive, 4 extra case fans plus the CPU fan and stock Case fan.
Any
> help in this would be appreciated. Operation seems normal except the fan
> noise slowing and speeding up instead of a steady sound. Thanks
> JCW
>
>

[Dan DeStefano]

if you have a faulty power supply, usually you will start noticing strange
problems with your machine - it will spontaneously reboot for no reason, it
will lock up intermittently, etc. however, slowing down fans, in some cases,
is by design - to optimize power usage. for example, asus has a feature
called q-fan built into new motherboards that adjusts the fan speeds based
on processor temperature increments, i.e. when the processor heats up, the
fan spins faster, then when the proc cools, the fan slows down. confirm that
your mobo does not employ a similar feature before troubleshooting this
issue further. check the mobo manufacturer websit and your machine BIOS to
see if you have a feature like this.

Dan DeStefano


"JCW" > wrote in message
...
> During normal operation my CPU fan noise slows and speeds up as I do
> different operations, such as open a program or a different website. I
think
> this may be a power supply issue. I am running a 350 watt PS, to run 2
HDs,
> CDRW, ZIP drive, 4 extra case fans plus the CPU fan and stock Case fan.
Any
> help in this would be appreciated. Operation seems normal except the fan
> noise slowing and speeding up instead of a steady sound. Thanks
> JCW
>
>

[CWatters]

Do you have a motherboard monitor program? What does it say about the supply
voltages?



"JCW" > wrote in message
...
> During normal operation my CPU fan noise slows and speeds up as I do
> different operations, such as open a program or a different website. I
think
> this may be a power supply issue. I am running a 350 watt PS, to run 2
HDs,
> CDRW, ZIP drive, 4 extra case fans plus the CPU fan and stock Case fan.
Any
> help in this would be appreciated. Operation seems normal except the fan
> noise slowing and speeding up instead of a steady sound. Thanks
> JCW
>
>

[CWatters]

Do you have a motherboard monitor program? What does it say about the supply
voltages?



"JCW" > wrote in message
...
> During normal operation my CPU fan noise slows and speeds up as I do
> different operations, such as open a program or a different website. I
think
> this may be a power supply issue. I am running a 350 watt PS, to run 2
HDs,
> CDRW, ZIP drive, 4 extra case fans plus the CPU fan and stock Case fan.
Any
> help in this would be appreciated. Operation seems normal except the fan
> noise slowing and speeding up instead of a steady sound. Thanks
> JCW
>
>

[JCW]

Hello,
I had to really look around to find these answers. My post isn't showing in
my OE, but obviously the answers are. I use AIDA32 .I am not sure what
information you want but I will get it if you will tell me. If I had a speed
controlled fan I put it in without knowing it was one. As far as the
Voltages for the MOBO they are :
CPU Core 1.55 V *
+2.5 V 2.53 V *
+3.3 V 3.31 V
+5 V 5.05 V
+12 V 12.42V
+5 V Standby 5.13 V
VBAT Battery 2.03 V

Please let me know if you need more info. I appreciate the help.
JCW
* indicates minor fluctuations + or -
"CWatters" <colin.watterspandora.be> wrote in message
...
> Do you have a motherboard monitor program? What does it say about the
supply
> voltages?
>
>
>
> "JCW" > wrote in message
> ...
> > During normal operation my CPU fan noise slows and speeds up as I do
> > different operations, such as open a program or a different website. I
> think
> > this may be a power supply issue. I am running a 350 watt PS, to run 2
> HDs,
> > CDRW, ZIP drive, 4 extra case fans plus the CPU fan and stock Case fan.
> Any
> > help in this would be appreciated. Operation seems normal except the fan
> > noise slowing and speeding up instead of a steady sound. Thanks
> > JCW
> >
> >
>
>

[JCW]

Hello,
I had to really look around to find these answers. My post isn't showing in
my OE, but obviously the answers are. I use AIDA32 .I am not sure what
information you want but I will get it if you will tell me. If I had a speed
controlled fan I put it in without knowing it was one. As far as the
Voltages for the MOBO they are :
CPU Core 1.55 V *
+2.5 V 2.53 V *
+3.3 V 3.31 V
+5 V 5.05 V
+12 V 12.42V
+5 V Standby 5.13 V
VBAT Battery 2.03 V

Please let me know if you need more info. I appreciate the help.
JCW
* indicates minor fluctuations + or -
"CWatters" <colin.watterspandora.be> wrote in message
...
> Do you have a motherboard monitor program? What does it say about the
supply
> voltages?
>
>
>
> "JCW" > wrote in message
> ...
> > During normal operation my CPU fan noise slows and speeds up as I do
> > different operations, such as open a program or a different website. I
> think
> > this may be a power supply issue. I am running a 350 watt PS, to run 2
> HDs,
> > CDRW, ZIP drive, 4 extra case fans plus the CPU fan and stock Case fan.
> Any
> > help in this would be appreciated. Operation seems normal except the fan
> > noise slowing and speeding up instead of a steady sound. Thanks
> > JCW
> >
> >
>
>

[JCW]

As a side to this, Is there a way for me to check why my original post
didn't show up on my reader, OE, ?
JCW
"CWatters" > wrote in message
...
> Do you have a motherboard monitor program? What does it say about the
supply
> voltages?
>
>
>
> "JCW" > wrote in message
> ...
> > During normal operation my CPU fan noise slows and speeds up as I do
> > different operations, such as open a program or a different website. I
> think
> > this may be a power supply issue. I am running a 350 watt PS, to run 2
> HDs,
> > CDRW, ZIP drive, 4 extra case fans plus the CPU fan and stock Case fan.
> Any
> > help in this would be appreciated. Operation seems normal except the fan
> > noise slowing and speeding up instead of a steady sound. Thanks
> > JCW
> >
> >
>
>

[JCW]

As a side to this, Is there a way for me to check why my original post
didn't show up on my reader, OE, ?
JCW
"CWatters" > wrote in message
...
> Do you have a motherboard monitor program? What does it say about the
supply
> voltages?
>
>
>
> "JCW" > wrote in message
> ...
> > During normal operation my CPU fan noise slows and speeds up as I do
> > different operations, such as open a program or a different website. I
> think
> > this may be a power supply issue. I am running a 350 watt PS, to run 2
> HDs,
> > CDRW, ZIP drive, 4 extra case fans plus the CPU fan and stock Case fan.
> Any
> > help in this would be appreciated. Operation seems normal except the fan
> > noise slowing and speeding up instead of a steady sound. Thanks
> > JCW
> >
> >
>
>

[JCW]

Hello,
I am running extra fans because I live where summer temps reach in triple
digits and heat is a CPU and Hard Drive killer. I think I have come to the
conclusion that Bills answer is correct. My power supply is new and 350
Watts is surely enough. I replaced the CPU fan this morning and it changed
nothing except maybe a little quieter but it still fluctuates depending on
what I am doing with the computer. For instance as I type this it is steady,
but as soon as I hit the send button it will change momentarily and then
settle down. As far as measuring the amperage I don't know how to do that
but I did post the voltages in a previous post. As it stands right now I
will consider everything OK. Thanks to All

JCW
"Unknown" > wrote in message
.com...
> Why are you running 4 extra case fans? Why not disconnect them just to
see
> if they are overloading the power supply. Eithe that or measure the
> amperage.
> "JCW" > wrote in message
> ...
> > As a side to this, Is there a way for me to check why my original post
> > didn't show up on my reader, OE, ?
> > JCW
> > "CWatters" > wrote in message
> > ...
> > > Do you have a motherboard monitor program? What does it say about the
> > supply
> > > voltages?
> > >
> > >
> > >
> > > "JCW" > wrote in message
> > > ...
> > > > During normal operation my CPU fan noise slows and speeds up as I do
> > > > different operations, such as open a program or a different website.
I
> > > think
> > > > this may be a power supply issue. I am running a 350 watt PS, to run
2
> > > HDs,
> > > > CDRW, ZIP drive, 4 extra case fans plus the CPU fan and stock Case
> fan.
> > > Any
> > > > help in this would be appreciated. Operation seems normal except the
> fan
> > > > noise slowing and speeding up instead of a steady sound. Thanks
> > > > JCW
> > > >
> > > >
> > >
> > >
> >
> >
>
>

[JCW]

Hello,
I am running extra fans because I live where summer temps reach in triple
digits and heat is a CPU and Hard Drive killer. I think I have come to the
conclusion that Bills answer is correct. My power supply is new and 350
Watts is surely enough. I replaced the CPU fan this morning and it changed
nothing except maybe a little quieter but it still fluctuates depending on
what I am doing with the computer. For instance as I type this it is steady,
but as soon as I hit the send button it will change momentarily and then
settle down. As far as measuring the amperage I don't know how to do that
but I did post the voltages in a previous post. As it stands right now I
will consider everything OK. Thanks to All

JCW
"Unknown" > wrote in message
.com...
> Why are you running 4 extra case fans? Why not disconnect them just to
see
> if they are overloading the power supply. Eithe that or measure the
> amperage.
> "JCW" > wrote in message
> ...
> > As a side to this, Is there a way for me to check why my original post
> > didn't show up on my reader, OE, ?
> > JCW
> > "CWatters" > wrote in message
> > ...
> > > Do you have a motherboard monitor program? What does it say about the
> > supply
> > > voltages?
> > >
> > >
> > >
> > > "JCW" > wrote in message
> > > ...
> > > > During normal operation my CPU fan noise slows and speeds up as I do
> > > > different operations, such as open a program or a different website.
I
> > > think
> > > > this may be a power supply issue. I am running a 350 watt PS, to run
2
> > > HDs,
> > > > CDRW, ZIP drive, 4 extra case fans plus the CPU fan and stock Case
> fan.
> > > Any
> > > > help in this would be appreciated. Operation seems normal except the
> fan
> > > > noise slowing and speeding up instead of a steady sound. Thanks
> > > > JCW
> > > >
> > > >
> > >
> > >
> >
> >
>
>

[Unknown]

Why are you running 4 extra case fans? Why not disconnect them just to see
if they are overloading the power supply. Eithe that or measure the
amperage.
"JCW" > wrote in message
...
> As a side to this, Is there a way for me to check why my original post
> didn't show up on my reader, OE, ?
> JCW
> "CWatters" > wrote in message
> ...
> > Do you have a motherboard monitor program? What does it say about the
> supply
> > voltages?
> >
> >
> >
> > "JCW" > wrote in message
> > ...
> > > During normal operation my CPU fan noise slows and speeds up as I do
> > > different operations, such as open a program or a different website. I
> > think
> > > this may be a power supply issue. I am running a 350 watt PS, to run 2
> > HDs,
> > > CDRW, ZIP drive, 4 extra case fans plus the CPU fan and stock Case
fan.
> > Any
> > > help in this would be appreciated. Operation seems normal except the
fan
> > > noise slowing and speeding up instead of a steady sound. Thanks
> > > JCW
> > >
> > >
> >
> >
>
>

[Unknown]

Why are you running 4 extra case fans? Why not disconnect them just to see
if they are overloading the power supply. Eithe that or measure the
amperage.
"JCW" > wrote in message
...
> As a side to this, Is there a way for me to check why my original post
> didn't show up on my reader, OE, ?
> JCW
> "CWatters" > wrote in message
> ...
> > Do you have a motherboard monitor program? What does it say about the
> supply
> > voltages?
> >
> >
> >
> > "JCW" > wrote in message
> > ...
> > > During normal operation my CPU fan noise slows and speeds up as I do
> > > different operations, such as open a program or a different website. I
> > think
> > > this may be a power supply issue. I am running a 350 watt PS, to run 2
> > HDs,
> > > CDRW, ZIP drive, 4 extra case fans plus the CPU fan and stock Case
fan.
> > Any
> > > help in this would be appreciated. Operation seems normal except the
fan
> > > noise slowing and speeding up instead of a steady sound. Thanks
> > > JCW
> > >
> > >
> >
> >
>
>

[Jim Macklin]

Not just the computer PS, ,but the line voltage from your
house can effect the computer.

If your household power is close to the limits, the computer
PS can get into a corner and the increased demand on the
CPU/modem/hhd could cause a drop in voltage to the fans and
the fan speed is controlled by voltage.

Play a radio near the computer and you won't be bothered by
slight rpm changes.


"JCW" > wrote in message
...
| Hello,
| I am running extra fans because I live where summer temps
reach in triple
| digits and heat is a CPU and Hard Drive killer. I think I
have come to the
| conclusion that Bills answer is correct. My power supply
is new and 350
| Watts is surely enough. I replaced the CPU fan this
morning and it changed
| nothing except maybe a little quieter but it still
fluctuates depending on
| what I am doing with the computer. For instance as I type
this it is steady,
| but as soon as I hit the send button it will change
momentarily and then
| settle down. As far as measuring the amperage I don't know
how to do that
| but I did post the voltages in a previous post. As it
stands right now I
| will consider everything OK. Thanks to All
|
| JCW
| "Unknown" > wrote in message
| .com...
| > Why are you running 4 extra case fans? Why not
disconnect them just to
| see
| > if they are overloading the power supply. Eithe that or
measure the
| > amperage.
| > "JCW" > wrote in message
| > ...
| > > As a side to this, Is there a way for me to check why
my original post
| > > didn't show up on my reader, OE, ?
| > > JCW
| > > "CWatters" > wrote in message
| > > ...
| > > > Do you have a motherboard monitor program? What does
it say about the
| > > supply
| > > > voltages?
| > > >
| > > >
| > > >
| > > > "JCW" > wrote in message
| > > > ...
| > > > > During normal operation my CPU fan noise slows and
speeds up as I do
| > > > > different operations, such as open a program or a
different website.
| I
| > > > think
| > > > > this may be a power supply issue. I am running a
350 watt PS, to run
| 2
| > > > HDs,
| > > > > CDRW, ZIP drive, 4 extra case fans plus the CPU
fan and stock Case
| > fan.
| > > > Any
| > > > > help in this would be appreciated. Operation seems
normal except the
| > fan
| > > > > noise slowing and speeding up instead of a steady
sound. Thanks
| > > > > JCW
| > > > >
| > > > >
| > > >
| > > >
| > >
| > >
| >
| >
|
|

[Jim Macklin]

Not just the computer PS, ,but the line voltage from your
house can effect the computer.

If your household power is close to the limits, the computer
PS can get into a corner and the increased demand on the
CPU/modem/hhd could cause a drop in voltage to the fans and
the fan speed is controlled by voltage.

Play a radio near the computer and you won't be bothered by
slight rpm changes.


"JCW" > wrote in message
...
| Hello,
| I am running extra fans because I live where summer temps
reach in triple
| digits and heat is a CPU and Hard Drive killer. I think I
have come to the
| conclusion that Bills answer is correct. My power supply
is new and 350
| Watts is surely enough. I replaced the CPU fan this
morning and it changed
| nothing except maybe a little quieter but it still
fluctuates depending on
| what I am doing with the computer. For instance as I type
this it is steady,
| but as soon as I hit the send button it will change
momentarily and then
| settle down. As far as measuring the amperage I don't know
how to do that
| but I did post the voltages in a previous post. As it
stands right now I
| will consider everything OK. Thanks to All
|
| JCW
| "Unknown" > wrote in message
| .com...
| > Why are you running 4 extra case fans? Why not
disconnect them just to
| see
| > if they are overloading the power supply. Eithe that or
measure the
| > amperage.
| > "JCW" > wrote in message
| > ...
| > > As a side to this, Is there a way for me to check why
my original post
| > > didn't show up on my reader, OE, ?
| > > JCW
| > > "CWatters" > wrote in message
| > > ...
| > > > Do you have a motherboard monitor program? What does
it say about the
| > > supply
| > > > voltages?
| > > >
| > > >
| > > >
| > > > "JCW" > wrote in message
| > > > ...
| > > > > During normal operation my CPU fan noise slows and
speeds up as I do
| > > > > different operations, such as open a program or a
different website.
| I
| > > > think
| > > > > this may be a power supply issue. I am running a
350 watt PS, to run
| 2
| > > > HDs,
| > > > > CDRW, ZIP drive, 4 extra case fans plus the CPU
fan and stock Case
| > fan.
| > > > Any
| > > > > help in this would be appreciated. Operation seems
normal except the
| > fan
| > > > > noise slowing and speeding up instead of a steady
sound. Thanks
| > > > > JCW
| > > > >
| > > > >
| > > >
| > > >
| > >
| > >
| >
| >
|
|

[Unknown]

Because computers use switch mode power supplies they can easily tolerate a
+ or - 15% main line change. Very very unlikely line voltage variations will
affect a computer.
"Jim Macklin" > wrote in message
...
> Not just the computer PS, ,but the line voltage from your
> house can effect the computer.
>
> If your household power is close to the limits, the computer
> PS can get into a corner and the increased demand on the
> CPU/modem/hhd could cause a drop in voltage to the fans and
> the fan speed is controlled by voltage.
>
> Play a radio near the computer and you won't be bothered by
> slight rpm changes.
>
>
> "JCW" > wrote in message
> ...
> | Hello,
> | I am running extra fans because I live where summer temps
> reach in triple
> | digits and heat is a CPU and Hard Drive killer. I think I
> have come to the
> | conclusion that Bills answer is correct. My power supply
> is new and 350
> | Watts is surely enough. I replaced the CPU fan this
> morning and it changed
> | nothing except maybe a little quieter but it still
> fluctuates depending on
> | what I am doing with the computer. For instance as I type
> this it is steady,
> | but as soon as I hit the send button it will change
> momentarily and then
> | settle down. As far as measuring the amperage I don't know
> how to do that
> | but I did post the voltages in a previous post. As it
> stands right now I
> | will consider everything OK. Thanks to All
> |
> | JCW
> | "Unknown" > wrote in message
> | .com...
> | > Why are you running 4 extra case fans? Why not
> disconnect them just to
> | see
> | > if they are overloading the power supply. Eithe that or
> measure the
> | > amperage.
> | > "JCW" > wrote in message
> | > ...
> | > > As a side to this, Is there a way for me to check why
> my original post
> | > > didn't show up on my reader, OE, ?
> | > > JCW
> | > > "CWatters" > wrote in message
> | > > ...
> | > > > Do you have a motherboard monitor program? What does
> it say about the
> | > > supply
> | > > > voltages?
> | > > >
> | > > >
> | > > >
> | > > > "JCW" > wrote in message
> | > > > ...
> | > > > > During normal operation my CPU fan noise slows and
> speeds up as I do
> | > > > > different operations, such as open a program or a
> different website.
> | I
> | > > > think
> | > > > > this may be a power supply issue. I am running a
> 350 watt PS, to run
> | 2
> | > > > HDs,
> | > > > > CDRW, ZIP drive, 4 extra case fans plus the CPU
> fan and stock Case
> | > fan.
> | > > > Any
> | > > > > help in this would be appreciated. Operation seems
> normal except the
> | > fan
> | > > > > noise slowing and speeding up instead of a steady
> sound. Thanks
> | > > > > JCW
> | > > > >
> | > > > >
> | > > >
> | > > >
> | > >
> | > >
> | >
> | >
> |
> |
>
>

[Unknown]

Because computers use switch mode power supplies they can easily tolerate a
+ or - 15% main line change. Very very unlikely line voltage variations will
affect a computer.
"Jim Macklin" > wrote in message
...
> Not just the computer PS, ,but the line voltage from your
> house can effect the computer.
>
> If your household power is close to the limits, the computer
> PS can get into a corner and the increased demand on the
> CPU/modem/hhd could cause a drop in voltage to the fans and
> the fan speed is controlled by voltage.
>
> Play a radio near the computer and you won't be bothered by
> slight rpm changes.
>
>
> "JCW" > wrote in message
> ...
> | Hello,
> | I am running extra fans because I live where summer temps
> reach in triple
> | digits and heat is a CPU and Hard Drive killer. I think I
> have come to the
> | conclusion that Bills answer is correct. My power supply
> is new and 350
> | Watts is surely enough. I replaced the CPU fan this
> morning and it changed
> | nothing except maybe a little quieter but it still
> fluctuates depending on
> | what I am doing with the computer. For instance as I type
> this it is steady,
> | but as soon as I hit the send button it will change
> momentarily and then
> | settle down. As far as measuring the amperage I don't know
> how to do that
> | but I did post the voltages in a previous post. As it
> stands right now I
> | will consider everything OK. Thanks to All
> |
> | JCW
> | "Unknown" > wrote in message
> | .com...
> | > Why are you running 4 extra case fans? Why not
> disconnect them just to
> | see
> | > if they are overloading the power supply. Eithe that or
> measure the
> | > amperage.
> | > "JCW" > wrote in message
> | > ...
> | > > As a side to this, Is there a way for me to check why
> my original post
> | > > didn't show up on my reader, OE, ?
> | > > JCW
> | > > "CWatters" > wrote in message
> | > > ...
> | > > > Do you have a motherboard monitor program? What does
> it say about the
> | > > supply
> | > > > voltages?
> | > > >
> | > > >
> | > > >
> | > > > "JCW" > wrote in message
> | > > > ...
> | > > > > During normal operation my CPU fan noise slows and
> speeds up as I do
> | > > > > different operations, such as open a program or a
> different website.
> | I
> | > > > think
> | > > > > this may be a power supply issue. I am running a
> 350 watt PS, to run
> | 2
> | > > > HDs,
> | > > > > CDRW, ZIP drive, 4 extra case fans plus the CPU
> fan and stock Case
> | > fan.
> | > > > Any
> | > > > > help in this would be appreciated. Operation seems
> normal except the
> | > fan
> | > > > > noise slowing and speeding up instead of a steady
> sound. Thanks
> | > > > > JCW
> | > > > >
> | > > > >
> | > > >
> | > > >
> | > >
> | > >
> | >
> | >
> |
> |
>
>

[Unknown]

Is your computer exposed to the three digit temperatures? No air
conditioning? Why not use an external 110V fan that does not use computer
voltages?
"JCW" > wrote in message
...
> Hello,
> I am running extra fans because I live where summer temps reach in triple
> digits and heat is a CPU and Hard Drive killer. I think I have come to the
> conclusion that Bills answer is correct. My power supply is new and 350
> Watts is surely enough. I replaced the CPU fan this morning and it changed
> nothing except maybe a little quieter but it still fluctuates depending on
> what I am doing with the computer. For instance as I type this it is
steady,
> but as soon as I hit the send button it will change momentarily and then
> settle down. As far as measuring the amperage I don't know how to do that
> but I did post the voltages in a previous post. As it stands right now I
> will consider everything OK. Thanks to All
>
> JCW
> "Unknown" > wrote in message
> .com...
> > Why are you running 4 extra case fans? Why not disconnect them just to
> see
> > if they are overloading the power supply. Eithe that or measure the
> > amperage.
> > "JCW" > wrote in message
> > ...
> > > As a side to this, Is there a way for me to check why my original post
> > > didn't show up on my reader, OE, ?
> > > JCW
> > > "CWatters" > wrote in message
> > > ...
> > > > Do you have a motherboard monitor program? What does it say about
the
> > > supply
> > > > voltages?
> > > >
> > > >
> > > >
> > > > "JCW" > wrote in message
> > > > ...
> > > > > During normal operation my CPU fan noise slows and speeds up as I
do
> > > > > different operations, such as open a program or a different
website.
> I
> > > > think
> > > > > this may be a power supply issue. I am running a 350 watt PS, to
run
> 2
> > > > HDs,
> > > > > CDRW, ZIP drive, 4 extra case fans plus the CPU fan and stock Case
> > fan.
> > > > Any
> > > > > help in this would be appreciated. Operation seems normal except
the
> > fan
> > > > > noise slowing and speeding up instead of a steady sound. Thanks
> > > > > JCW
> > > > >
> > > > >
> > > >
> > > >
> > >
> > >
> >
> >
>
>

[Unknown]

Is your computer exposed to the three digit temperatures? No air
conditioning? Why not use an external 110V fan that does not use computer
voltages?
"JCW" > wrote in message
...
> Hello,
> I am running extra fans because I live where summer temps reach in triple
> digits and heat is a CPU and Hard Drive killer. I think I have come to the
> conclusion that Bills answer is correct. My power supply is new and 350
> Watts is surely enough. I replaced the CPU fan this morning and it changed
> nothing except maybe a little quieter but it still fluctuates depending on
> what I am doing with the computer. For instance as I type this it is
steady,
> but as soon as I hit the send button it will change momentarily and then
> settle down. As far as measuring the amperage I don't know how to do that
> but I did post the voltages in a previous post. As it stands right now I
> will consider everything OK. Thanks to All
>
> JCW
> "Unknown" > wrote in message
> .com...
> > Why are you running 4 extra case fans? Why not disconnect them just to
> see
> > if they are overloading the power supply. Eithe that or measure the
> > amperage.
> > "JCW" > wrote in message
> > ...
> > > As a side to this, Is there a way for me to check why my original post
> > > didn't show up on my reader, OE, ?
> > > JCW
> > > "CWatters" > wrote in message
> > > ...
> > > > Do you have a motherboard monitor program? What does it say about
the
> > > supply
> > > > voltages?
> > > >
> > > >
> > > >
> > > > "JCW" > wrote in message
> > > > ...
> > > > > During normal operation my CPU fan noise slows and speeds up as I
do
> > > > > different operations, such as open a program or a different
website.
> I
> > > > think
> > > > > this may be a power supply issue. I am running a 350 watt PS, to
run
> 2
> > > > HDs,
> > > > > CDRW, ZIP drive, 4 extra case fans plus the CPU fan and stock Case
> > fan.
> > > > Any
> > > > > help in this would be appreciated. Operation seems normal except
the
> > fan
> > > > > noise slowing and speeding up instead of a steady sound. Thanks
> > > > > JCW
> > > > >
> > > > >
> > > >
> > > >
> > >
> > >
> >
> >
>
>

[Jim Macklin]

nominal line voltage of 110-115 would be a problem if the
voltage dropped to 93 volts. Depending on what other
devices are on the same household circuits, this is very
possible. Often houses have inadequate wiring and
electrical service. Old homes were often wired for only 60
AMPS service and have not been upgraded. Newer homes are
built for a "price" and often have minimal service. There
are TVs, water heaters, washing machines, stereo, and
whether they are on separate circuit breakers they are all
on the single household supply service.
It is worth checking. One way would be to use a always ON
UPS with power conditioning. Another would be to have the
power company put a monitor on the service for a day or two
and get a trace on the line voltage and the instantaneous
variations.


"Unknown" > wrote in message
.com...
| Because computers use switch mode power supplies they can
easily tolerate a
| + or - 15% main line change. Very very unlikely line
voltage variations will
| affect a computer.
| "Jim Macklin" > wrote in message
| ...
| > Not just the computer PS, ,but the line voltage from
your
| > house can effect the computer.
| >
| > If your household power is close to the limits, the
computer
| > PS can get into a corner and the increased demand on the
| > CPU/modem/hhd could cause a drop in voltage to the fans
and
| > the fan speed is controlled by voltage.
| >
| > Play a radio near the computer and you won't be bothered
by
| > slight rpm changes.
| >
| >
| > "JCW" > wrote in message
| > ...
| > | Hello,
| > | I am running extra fans because I live where summer
temps
| > reach in triple
| > | digits and heat is a CPU and Hard Drive killer. I
think I
| > have come to the
| > | conclusion that Bills answer is correct. My power
supply
| > is new and 350
| > | Watts is surely enough. I replaced the CPU fan this
| > morning and it changed
| > | nothing except maybe a little quieter but it still
| > fluctuates depending on
| > | what I am doing with the computer. For instance as I
type
| > this it is steady,
| > | but as soon as I hit the send button it will change
| > momentarily and then
| > | settle down. As far as measuring the amperage I don't
know
| > how to do that
| > | but I did post the voltages in a previous post. As it
| > stands right now I
| > | will consider everything OK. Thanks to All
| > |
| > | JCW
| > | "Unknown" > wrote in message
| > |
.com...
| > | > Why are you running 4 extra case fans? Why not
| > disconnect them just to
| > | see
| > | > if they are overloading the power supply. Eithe that
or
| > measure the
| > | > amperage.
| > | > "JCW" > wrote in message
| > | > ...
| > | > > As a side to this, Is there a way for me to check
why
| > my original post
| > | > > didn't show up on my reader, OE, ?
| > | > > JCW
| > | > > "CWatters" > wrote in
message
| > | > >
...
| > | > > > Do you have a motherboard monitor program? What
does
| > it say about the
| > | > > supply
| > | > > > voltages?
| > | > > >
| > | > > >
| > | > > >
| > | > > > "JCW" > wrote in message
| > | > > > ...
| > | > > > > During normal operation my CPU fan noise slows
and
| > speeds up as I do
| > | > > > > different operations, such as open a program
or a
| > different website.
| > | I
| > | > > > think
| > | > > > > this may be a power supply issue. I am running
a
| > 350 watt PS, to run
| > | 2
| > | > > > HDs,
| > | > > > > CDRW, ZIP drive, 4 extra case fans plus the
CPU
| > fan and stock Case
| > | > fan.
| > | > > > Any
| > | > > > > help in this would be appreciated. Operation
seems
| > normal except the
| > | > fan
| > | > > > > noise slowing and speeding up instead of a
steady
| > sound. Thanks
| > | > > > > JCW
| > | > > > >
| > | > > > >
| > | > > >
| > | > > >
| > | > >
| > | > >
| > | >
| > | >
| > |
| > |
| >
| >
|
|

[Jim Macklin]

nominal line voltage of 110-115 would be a problem if the
voltage dropped to 93 volts. Depending on what other
devices are on the same household circuits, this is very
possible. Often houses have inadequate wiring and
electrical service. Old homes were often wired for only 60
AMPS service and have not been upgraded. Newer homes are
built for a "price" and often have minimal service. There
are TVs, water heaters, washing machines, stereo, and
whether they are on separate circuit breakers they are all
on the single household supply service.
It is worth checking. One way would be to use a always ON
UPS with power conditioning. Another would be to have the
power company put a monitor on the service for a day or two
and get a trace on the line voltage and the instantaneous
variations.


"Unknown" > wrote in message
.com...
| Because computers use switch mode power supplies they can
easily tolerate a
| + or - 15% main line change. Very very unlikely line
voltage variations will
| affect a computer.
| "Jim Macklin" > wrote in message
| ...
| > Not just the computer PS, ,but the line voltage from
your
| > house can effect the computer.
| >
| > If your household power is close to the limits, the
computer
| > PS can get into a corner and the increased demand on the
| > CPU/modem/hhd could cause a drop in voltage to the fans
and
| > the fan speed is controlled by voltage.
| >
| > Play a radio near the computer and you won't be bothered
by
| > slight rpm changes.
| >
| >
| > "JCW" > wrote in message
| > ...
| > | Hello,
| > | I am running extra fans because I live where summer
temps
| > reach in triple
| > | digits and heat is a CPU and Hard Drive killer. I
think I
| > have come to the
| > | conclusion that Bills answer is correct. My power
supply
| > is new and 350
| > | Watts is surely enough. I replaced the CPU fan this
| > morning and it changed
| > | nothing except maybe a little quieter but it still
| > fluctuates depending on
| > | what I am doing with the computer. For instance as I
type
| > this it is steady,
| > | but as soon as I hit the send button it will change
| > momentarily and then
| > | settle down. As far as measuring the amperage I don't
know
| > how to do that
| > | but I did post the voltages in a previous post. As it
| > stands right now I
| > | will consider everything OK. Thanks to All
| > |
| > | JCW
| > | "Unknown" > wrote in message
| > |
.com...
| > | > Why are you running 4 extra case fans? Why not
| > disconnect them just to
| > | see
| > | > if they are overloading the power supply. Eithe that
or
| > measure the
| > | > amperage.
| > | > "JCW" > wrote in message
| > | > ...
| > | > > As a side to this, Is there a way for me to check
why
| > my original post
| > | > > didn't show up on my reader, OE, ?
| > | > > JCW
| > | > > "CWatters" > wrote in
message
| > | > >
...
| > | > > > Do you have a motherboard monitor program? What
does
| > it say about the
| > | > > supply
| > | > > > voltages?
| > | > > >
| > | > > >
| > | > > >
| > | > > > "JCW" > wrote in message
| > | > > > ...
| > | > > > > During normal operation my CPU fan noise slows
and
| > speeds up as I do
| > | > > > > different operations, such as open a program
or a
| > different website.
| > | I
| > | > > > think
| > | > > > > this may be a power supply issue. I am running
a
| > 350 watt PS, to run
| > | 2
| > | > > > HDs,
| > | > > > > CDRW, ZIP drive, 4 extra case fans plus the
CPU
| > fan and stock Case
| > | > fan.
| > | > > > Any
| > | > > > > help in this would be appreciated. Operation
seems
| > normal except the
| > | > fan
| > | > > > > noise slowing and speeding up instead of a
steady
| > sound. Thanks
| > | > > > > JCW
| > | > > > >
| > | > > > >
| > | > > >
| > | > > >
| > | > >
| > | > >
| > | >
| > | >
| > |
| > |
| >
| >
|
|

[Jim Macklin]

If he has tried everything else, why would it be expensive.
Power companies will put a line voltage recorder on your
house for free last time I checked. They know that if it is
low, you pay to upgrade the line. And if your power is low
voltage you don't have much choice.


"Unknown" > wrote in message
.com...
| Ridiculous expenses just to find out why the buzz of a fan
changes.
| "Jim Macklin" > wrote in message
| ...
| > nominal line voltage of 110-115 would be a problem if
the
| > voltage dropped to 93 volts. Depending on what other
| > devices are on the same household circuits, this is very
| > possible. Often houses have inadequate wiring and
| > electrical service. Old homes were often wired for only
60
| > AMPS service and have not been upgraded. Newer homes
are
| > built for a "price" and often have minimal service.
There
| > are TVs, water heaters, washing machines, stereo, and
| > whether they are on separate circuit breakers they are
all
| > on the single household supply service.
| > It is worth checking. One way would be to use a always
ON
| > UPS with power conditioning. Another would be to have
the
| > power company put a monitor on the service for a day or
two
| > and get a trace on the line voltage and the
instantaneous
| > variations.
| >
| >
| > "Unknown" > wrote in message
| >
.com...
| > | Because computers use switch mode power supplies they
can
| > easily tolerate a
| > | + or - 15% main line change. Very very unlikely line
| > voltage variations will
| > | affect a computer.
| > | "Jim Macklin" > wrote in
message
| > | ...
| > | > Not just the computer PS, ,but the line voltage from
| > your
| > | > house can effect the computer.
| > | >
| > | > If your household power is close to the limits, the
| > computer
| > | > PS can get into a corner and the increased demand on
the
| > | > CPU/modem/hhd could cause a drop in voltage to the
fans
| > and
| > | > the fan speed is controlled by voltage.
| > | >
| > | > Play a radio near the computer and you won't be
bothered
| > by
| > | > slight rpm changes.
| > | >
| > | >
| > | > "JCW" > wrote in message
| > | > ...
| > | > | Hello,
| > | > | I am running extra fans because I live where
summer
| > temps
| > | > reach in triple
| > | > | digits and heat is a CPU and Hard Drive killer. I
| > think I
| > | > have come to the
| > | > | conclusion that Bills answer is correct. My power
| > supply
| > | > is new and 350
| > | > | Watts is surely enough. I replaced the CPU fan
this
| > | > morning and it changed
| > | > | nothing except maybe a little quieter but it still
| > | > fluctuates depending on
| > | > | what I am doing with the computer. For instance as
I
| > type
| > | > this it is steady,
| > | > | but as soon as I hit the send button it will
change
| > | > momentarily and then
| > | > | settle down. As far as measuring the amperage I
don't
| > know
| > | > how to do that
| > | > | but I did post the voltages in a previous post. As
it
| > | > stands right now I
| > | > | will consider everything OK. Thanks to All
| > | > |
| > | > | JCW
| > | > | "Unknown" > wrote in message
| > | > |
| >
.com...
| > | > | > Why are you running 4 extra case fans? Why not
| > | > disconnect them just to
| > | > | see
| > | > | > if they are overloading the power supply. Eithe
that
| > or
| > | > measure the
| > | > | > amperage.
| > | > | > "JCW" > wrote in message
| > | > | > ...
| > | > | > > As a side to this, Is there a way for me to
check
| > why
| > | > my original post
| > | > | > > didn't show up on my reader, OE, ?
| > | > | > > JCW
| > | > | > > "CWatters" > wrote in
| > message
| > | > | > >
| > ...
| > | > | > > > Do you have a motherboard monitor program?
What
| > does
| > | > it say about the
| > | > | > > supply
| > | > | > > > voltages?
| > | > | > > >
| > | > | > > >
| > | > | > > >
| > | > | > > > "JCW" > wrote in
message
| > | > | > > >
...
| > | > | > > > > During normal operation my CPU fan noise
slows
| > and
| > | > speeds up as I do
| > | > | > > > > different operations, such as open a
program
| > or a
| > | > different website.
| > | > | I
| > | > | > > > think
| > | > | > > > > this may be a power supply issue. I am
running
| > a
| > | > 350 watt PS, to run
| > | > | 2
| > | > | > > > HDs,
| > | > | > > > > CDRW, ZIP drive, 4 extra case fans plus
the
| > CPU
| > | > fan and stock Case
| > | > | > fan.
| > | > | > > > Any
| > | > | > > > > help in this would be appreciated.
Operation
| > seems
| > | > normal except the
| > | > | > fan
| > | > | > > > > noise slowing and speeding up instead of a
| > steady
| > | > sound. Thanks
| > | > | > > > > JCW
| > | > | > > > >
| > | > | > > > >
| > | > | > > >
| > | > | > > >
| > | > | > >
| > | > | > >
| > | > | >
| > | > | >
| > | > |
| > | > |
| > | >
| > | >
| > |
| > |
| >
| >
|
|

[Jim Macklin]

If he has tried everything else, why would it be expensive.
Power companies will put a line voltage recorder on your
house for free last time I checked. They know that if it is
low, you pay to upgrade the line. And if your power is low
voltage you don't have much choice.


"Unknown" > wrote in message
.com...
| Ridiculous expenses just to find out why the buzz of a fan
changes.
| "Jim Macklin" > wrote in message
| ...
| > nominal line voltage of 110-115 would be a problem if
the
| > voltage dropped to 93 volts. Depending on what other
| > devices are on the same household circuits, this is very
| > possible. Often houses have inadequate wiring and
| > electrical service. Old homes were often wired for only
60
| > AMPS service and have not been upgraded. Newer homes
are
| > built for a "price" and often have minimal service.
There
| > are TVs, water heaters, washing machines, stereo, and
| > whether they are on separate circuit breakers they are
all
| > on the single household supply service.
| > It is worth checking. One way would be to use a always
ON
| > UPS with power conditioning. Another would be to have
the
| > power company put a monitor on the service for a day or
two
| > and get a trace on the line voltage and the
instantaneous
| > variations.
| >
| >
| > "Unknown" > wrote in message
| >
.com...
| > | Because computers use switch mode power supplies they
can
| > easily tolerate a
| > | + or - 15% main line change. Very very unlikely line
| > voltage variations will
| > | affect a computer.
| > | "Jim Macklin" > wrote in
message
| > | ...
| > | > Not just the computer PS, ,but the line voltage from
| > your
| > | > house can effect the computer.
| > | >
| > | > If your household power is close to the limits, the
| > computer
| > | > PS can get into a corner and the increased demand on
the
| > | > CPU/modem/hhd could cause a drop in voltage to the
fans
| > and
| > | > the fan speed is controlled by voltage.
| > | >
| > | > Play a radio near the computer and you won't be
bothered
| > by
| > | > slight rpm changes.
| > | >
| > | >
| > | > "JCW" > wrote in message
| > | > ...
| > | > | Hello,
| > | > | I am running extra fans because I live where
summer
| > temps
| > | > reach in triple
| > | > | digits and heat is a CPU and Hard Drive killer. I
| > think I
| > | > have come to the
| > | > | conclusion that Bills answer is correct. My power
| > supply
| > | > is new and 350
| > | > | Watts is surely enough. I replaced the CPU fan
this
| > | > morning and it changed
| > | > | nothing except maybe a little quieter but it still
| > | > fluctuates depending on
| > | > | what I am doing with the computer. For instance as
I
| > type
| > | > this it is steady,
| > | > | but as soon as I hit the send button it will
change
| > | > momentarily and then
| > | > | settle down. As far as measuring the amperage I
don't
| > know
| > | > how to do that
| > | > | but I did post the voltages in a previous post. As
it
| > | > stands right now I
| > | > | will consider everything OK. Thanks to All
| > | > |
| > | > | JCW
| > | > | "Unknown" > wrote in message
| > | > |
| >
.com...
| > | > | > Why are you running 4 extra case fans? Why not
| > | > disconnect them just to
| > | > | see
| > | > | > if they are overloading the power supply. Eithe
that
| > or
| > | > measure the
| > | > | > amperage.
| > | > | > "JCW" > wrote in message
| > | > | > ...
| > | > | > > As a side to this, Is there a way for me to
check
| > why
| > | > my original post
| > | > | > > didn't show up on my reader, OE, ?
| > | > | > > JCW
| > | > | > > "CWatters" > wrote in
| > message
| > | > | > >
| > ...
| > | > | > > > Do you have a motherboard monitor program?
What
| > does
| > | > it say about the
| > | > | > > supply
| > | > | > > > voltages?
| > | > | > > >
| > | > | > > >
| > | > | > > >
| > | > | > > > "JCW" > wrote in
message
| > | > | > > >
...
| > | > | > > > > During normal operation my CPU fan noise
slows
| > and
| > | > speeds up as I do
| > | > | > > > > different operations, such as open a
program
| > or a
| > | > different website.
| > | > | I
| > | > | > > > think
| > | > | > > > > this may be a power supply issue. I am
running
| > a
| > | > 350 watt PS, to run
| > | > | 2
| > | > | > > > HDs,
| > | > | > > > > CDRW, ZIP drive, 4 extra case fans plus
the
| > CPU
| > | > fan and stock Case
| > | > | > fan.
| > | > | > > > Any
| > | > | > > > > help in this would be appreciated.
Operation
| > seems
| > | > normal except the
| > | > | > fan
| > | > | > > > > noise slowing and speeding up instead of a
| > steady
| > | > sound. Thanks
| > | > | > > > > JCW
| > | > | > > > >
| > | > | > > > >
| > | > | > > >
| > | > | > > >
| > | > | > >
| > | > | > >
| > | > | >
| > | > | >
| > | > |
| > | > |
| > | >
| > | >
| > |
| > |
| >
| >
|
|

[Unknown]

Ridiculous expenses just to find out why the buzz of a fan changes.
"Jim Macklin" > wrote in message
...
> nominal line voltage of 110-115 would be a problem if the
> voltage dropped to 93 volts. Depending on what other
> devices are on the same household circuits, this is very
> possible. Often houses have inadequate wiring and
> electrical service. Old homes were often wired for only 60
> AMPS service and have not been upgraded. Newer homes are
> built for a "price" and often have minimal service. There
> are TVs, water heaters, washing machines, stereo, and
> whether they are on separate circuit breakers they are all
> on the single household supply service.
> It is worth checking. One way would be to use a always ON
> UPS with power conditioning. Another would be to have the
> power company put a monitor on the service for a day or two
> and get a trace on the line voltage and the instantaneous
> variations.
>
>
> "Unknown" > wrote in message
> .com...
> | Because computers use switch mode power supplies they can
> easily tolerate a
> | + or - 15% main line change. Very very unlikely line
> voltage variations will
> | affect a computer.
> | "Jim Macklin" > wrote in message
> | ...
> | > Not just the computer PS, ,but the line voltage from
> your
> | > house can effect the computer.
> | >
> | > If your household power is close to the limits, the
> computer
> | > PS can get into a corner and the increased demand on the
> | > CPU/modem/hhd could cause a drop in voltage to the fans
> and
> | > the fan speed is controlled by voltage.
> | >
> | > Play a radio near the computer and you won't be bothered
> by
> | > slight rpm changes.
> | >
> | >
> | > "JCW" > wrote in message
> | > ...
> | > | Hello,
> | > | I am running extra fans because I live where summer
> temps
> | > reach in triple
> | > | digits and heat is a CPU and Hard Drive killer. I
> think I
> | > have come to the
> | > | conclusion that Bills answer is correct. My power
> supply
> | > is new and 350
> | > | Watts is surely enough. I replaced the CPU fan this
> | > morning and it changed
> | > | nothing except maybe a little quieter but it still
> | > fluctuates depending on
> | > | what I am doing with the computer. For instance as I
> type
> | > this it is steady,
> | > | but as soon as I hit the send button it will change
> | > momentarily and then
> | > | settle down. As far as measuring the amperage I don't
> know
> | > how to do that
> | > | but I did post the voltages in a previous post. As it
> | > stands right now I
> | > | will consider everything OK. Thanks to All
> | > |
> | > | JCW
> | > | "Unknown" > wrote in message
> | > |
> .com...
> | > | > Why are you running 4 extra case fans? Why not
> | > disconnect them just to
> | > | see
> | > | > if they are overloading the power supply. Eithe that
> or
> | > measure the
> | > | > amperage.
> | > | > "JCW" > wrote in message
> | > | > ...
> | > | > > As a side to this, Is there a way for me to check
> why
> | > my original post
> | > | > > didn't show up on my reader, OE, ?
> | > | > > JCW
> | > | > > "CWatters" > wrote in
> message
> | > | > >
> ...
> | > | > > > Do you have a motherboard monitor program? What
> does
> | > it say about the
> | > | > > supply
> | > | > > > voltages?
> | > | > > >
> | > | > > >
> | > | > > >
> | > | > > > "JCW" > wrote in message
> | > | > > > ...
> | > | > > > > During normal operation my CPU fan noise slows
> and
> | > speeds up as I do
> | > | > > > > different operations, such as open a program
> or a
> | > different website.
> | > | I
> | > | > > > think
> | > | > > > > this may be a power supply issue. I am running
> a
> | > 350 watt PS, to run
> | > | 2
> | > | > > > HDs,
> | > | > > > > CDRW, ZIP drive, 4 extra case fans plus the
> CPU
> | > fan and stock Case
> | > | > fan.
> | > | > > > Any
> | > | > > > > help in this would be appreciated. Operation
> seems
> | > normal except the
> | > | > fan
> | > | > > > > noise slowing and speeding up instead of a
> steady
> | > sound. Thanks
> | > | > > > > JCW
> | > | > > > >
> | > | > > > >
> | > | > > >
> | > | > > >
> | > | > >
> | > | > >
> | > | >
> | > | >
> | > |
> | > |
> | >
> | >
> |
> |
>
>

[Unknown]

Ridiculous expenses just to find out why the buzz of a fan changes.
"Jim Macklin" > wrote in message
...
> nominal line voltage of 110-115 would be a problem if the
> voltage dropped to 93 volts. Depending on what other
> devices are on the same household circuits, this is very
> possible. Often houses have inadequate wiring and
> electrical service. Old homes were often wired for only 60
> AMPS service and have not been upgraded. Newer homes are
> built for a "price" and often have minimal service. There
> are TVs, water heaters, washing machines, stereo, and
> whether they are on separate circuit breakers they are all
> on the single household supply service.
> It is worth checking. One way would be to use a always ON
> UPS with power conditioning. Another would be to have the
> power company put a monitor on the service for a day or two
> and get a trace on the line voltage and the instantaneous
> variations.
>
>
> "Unknown" > wrote in message
> .com...
> | Because computers use switch mode power supplies they can
> easily tolerate a
> | + or - 15% main line change. Very very unlikely line
> voltage variations will
> | affect a computer.
> | "Jim Macklin" > wrote in message
> | ...
> | > Not just the computer PS, ,but the line voltage from
> your
> | > house can effect the computer.
> | >
> | > If your household power is close to the limits, the
> computer
> | > PS can get into a corner and the increased demand on the
> | > CPU/modem/hhd could cause a drop in voltage to the fans
> and
> | > the fan speed is controlled by voltage.
> | >
> | > Play a radio near the computer and you won't be bothered
> by
> | > slight rpm changes.
> | >
> | >
> | > "JCW" > wrote in message
> | > ...
> | > | Hello,
> | > | I am running extra fans because I live where summer
> temps
> | > reach in triple
> | > | digits and heat is a CPU and Hard Drive killer. I
> think I
> | > have come to the
> | > | conclusion that Bills answer is correct. My power
> supply
> | > is new and 350
> | > | Watts is surely enough. I replaced the CPU fan this
> | > morning and it changed
> | > | nothing except maybe a little quieter but it still
> | > fluctuates depending on
> | > | what I am doing with the computer. For instance as I
> type
> | > this it is steady,
> | > | but as soon as I hit the send button it will change
> | > momentarily and then
> | > | settle down. As far as measuring the amperage I don't
> know
> | > how to do that
> | > | but I did post the voltages in a previous post. As it
> | > stands right now I
> | > | will consider everything OK. Thanks to All
> | > |
> | > | JCW
> | > | "Unknown" > wrote in message
> | > |
> .com...
> | > | > Why are you running 4 extra case fans? Why not
> | > disconnect them just to
> | > | see
> | > | > if they are overloading the power supply. Eithe that
> or
> | > measure the
> | > | > amperage.
> | > | > "JCW" > wrote in message
> | > | > ...
> | > | > > As a side to this, Is there a way for me to check
> why
> | > my original post
> | > | > > didn't show up on my reader, OE, ?
> | > | > > JCW
> | > | > > "CWatters" > wrote in
> message
> | > | > >
> ...
> | > | > > > Do you have a motherboard monitor program? What
> does
> | > it say about the
> | > | > > supply
> | > | > > > voltages?
> | > | > > >
> | > | > > >
> | > | > > >
> | > | > > > "JCW" > wrote in message
> | > | > > > ...
> | > | > > > > During normal operation my CPU fan noise slows
> and
> | > speeds up as I do
> | > | > > > > different operations, such as open a program
> or a
> | > different website.
> | > | I
> | > | > > > think
> | > | > > > > this may be a power supply issue. I am running
> a
> | > 350 watt PS, to run
> | > | 2
> | > | > > > HDs,
> | > | > > > > CDRW, ZIP drive, 4 extra case fans plus the
> CPU
> | > fan and stock Case
> | > | > fan.
> | > | > > > Any
> | > | > > > > help in this would be appreciated. Operation
> seems
> | > normal except the
> | > | > fan
> | > | > > > > noise slowing and speeding up instead of a
> steady
> | > sound. Thanks
> | > | > > > > JCW
> | > | > > > >
> | > | > > > >
> | > | > > >
> | > | > > >
> | > | > >
> | > | > >
> | > | >
> | > | >
> | > |
> | > |
> | >
> | >
> |
> |
>
>

[JCW]

Thanks Dan and everyone else who offered help with this issue. After
investigating, replacing certain components, I am fairly confident that this
is normal. The change I made recently from slower/older MoBo and CPU to a P4
system presented some things that I wasn't used to and maybe I panicked.
Anyways, thanks everyone...
JCW
"Dan DeStefano" <ddestefanoATwinmarcompaniesDOTcom> wrote in message
...
> if you have a faulty power supply, usually you will start noticing strange
> problems with your machine - it will spontaneously reboot for no reason,
it
> will lock up intermittently, etc. however, slowing down fans, in some
cases,
> is by design - to optimize power usage. for example, asus has a feature
> called q-fan built into new motherboards that adjusts the fan speeds based
> on processor temperature increments, i.e. when the processor heats up, the
> fan spins faster, then when the proc cools, the fan slows down. confirm
that
> your mobo does not employ a similar feature before troubleshooting this
> issue further. check the mobo manufacturer websit and your machine BIOS to
> see if you have a feature like this.
>
> Dan DeStefano
>
>
> "JCW" > wrote in message
> ...
> > During normal operation my CPU fan noise slows and speeds up as I do
> > different operations, such as open a program or a different website. I
> think
> > this may be a power supply issue. I am running a 350 watt PS, to run 2
> HDs,
> > CDRW, ZIP drive, 4 extra case fans plus the CPU fan and stock Case fan.
> Any
> > help in this would be appreciated. Operation seems normal except the fan
> > noise slowing and speeding up instead of a steady sound. Thanks
> > JCW
> >
> >
>
>

[JCW]

Thanks Dan and everyone else who offered help with this issue. After
investigating, replacing certain components, I am fairly confident that this
is normal. The change I made recently from slower/older MoBo and CPU to a P4
system presented some things that I wasn't used to and maybe I panicked.
Anyways, thanks everyone...
JCW
"Dan DeStefano" <ddestefanoATwinmarcompaniesDOTcom> wrote in message
...
> if you have a faulty power supply, usually you will start noticing strange
> problems with your machine - it will spontaneously reboot for no reason,
it
> will lock up intermittently, etc. however, slowing down fans, in some
cases,
> is by design - to optimize power usage. for example, asus has a feature
> called q-fan built into new motherboards that adjusts the fan speeds based
> on processor temperature increments, i.e. when the processor heats up, the
> fan spins faster, then when the proc cools, the fan slows down. confirm
that
> your mobo does not employ a similar feature before troubleshooting this
> issue further. check the mobo manufacturer websit and your machine BIOS to
> see if you have a feature like this.
>
> Dan DeStefano
>
>
> "JCW" > wrote in message
> ...
> > During normal operation my CPU fan noise slows and speeds up as I do
> > different operations, such as open a program or a different website. I
> think
> > this may be a power supply issue. I am running a 350 watt PS, to run 2
> HDs,
> > CDRW, ZIP drive, 4 extra case fans plus the CPU fan and stock Case fan.
> Any
> > help in this would be appreciated. Operation seems normal except the fan
> > noise slowing and speeding up instead of a steady sound. Thanks
> > JCW
> >
> >
>
>

[Unknown]

Xref: kermit microsoft.public.windowsxp.basics:102227

First off, there would be many many more indications of low line voltage
noticed before having a recorder put on the line. Some would be a shrunken
picture on a TV set which is far more sensitive than a computer, dim light
bulbs, etc. The power company here won't put on a recorder just because you
ask.
"Jim Macklin" > wrote in message
...
> If he has tried everything else, why would it be expensive.
> Power companies will put a line voltage recorder on your
> house for free last time I checked. They know that if it is
> low, you pay to upgrade the line. And if your power is low
> voltage you don't have much choice.
>
>
> "Unknown" > wrote in message
> .com...
> | Ridiculous expenses just to find out why the buzz of a fan
> changes.
> | "Jim Macklin" > wrote in message
> | ...
> | > nominal line voltage of 110-115 would be a problem if
> the
> | > voltage dropped to 93 volts. Depending on what other
> | > devices are on the same household circuits, this is very
> | > possible. Often houses have inadequate wiring and
> | > electrical service. Old homes were often wired for only
> 60
> | > AMPS service and have not been upgraded. Newer homes
> are
> | > built for a "price" and often have minimal service.
> There
> | > are TVs, water heaters, washing machines, stereo, and
> | > whether they are on separate circuit breakers they are
> all
> | > on the single household supply service.
> | > It is worth checking. One way would be to use a always
> ON
> | > UPS with power conditioning. Another would be to have
> the
> | > power company put a monitor on the service for a day or
> two
> | > and get a trace on the line voltage and the
> instantaneous
> | > variations.
> | >
> | >
> | > "Unknown" > wrote in message
> | >
> .com...
> | > | Because computers use switch mode power supplies they
> can
> | > easily tolerate a
> | > | + or - 15% main line change. Very very unlikely line
> | > voltage variations will
> | > | affect a computer.
> | > | "Jim Macklin" > wrote in
> message
> | > | ...
> | > | > Not just the computer PS, ,but the line voltage from
> | > your
> | > | > house can effect the computer.
> | > | >
> | > | > If your household power is close to the limits, the
> | > computer
> | > | > PS can get into a corner and the increased demand on
> the
> | > | > CPU/modem/hhd could cause a drop in voltage to the
> fans
> | > and
> | > | > the fan speed is controlled by voltage.
> | > | >
> | > | > Play a radio near the computer and you won't be
> bothered
> | > by
> | > | > slight rpm changes.
> | > | >
> | > | >
> | > | > "JCW" > wrote in message
> | > | > ...
> | > | > | Hello,
> | > | > | I am running extra fans because I live where
> summer
> | > temps
> | > | > reach in triple
> | > | > | digits and heat is a CPU and Hard Drive killer. I
> | > think I
> | > | > have come to the
> | > | > | conclusion that Bills answer is correct. My power
> | > supply
> | > | > is new and 350
> | > | > | Watts is surely enough. I replaced the CPU fan
> this
> | > | > morning and it changed
> | > | > | nothing except maybe a little quieter but it still
> | > | > fluctuates depending on
> | > | > | what I am doing with the computer. For instance as
> I
> | > type
> | > | > this it is steady,
> | > | > | but as soon as I hit the send button it will
> change
> | > | > momentarily and then
> | > | > | settle down. As far as measuring the amperage I
> don't
> | > know
> | > | > how to do that
> | > | > | but I did post the voltages in a previous post. As
> it
> | > | > stands right now I
> | > | > | will consider everything OK. Thanks to All
> | > | > |
> | > | > | JCW
> | > | > | "Unknown" > wrote in message
> | > | > |
> | >
> .com...
> | > | > | > Why are you running 4 extra case fans? Why not
> | > | > disconnect them just to
> | > | > | see
> | > | > | > if they are overloading the power supply. Eithe
> that
> | > or
> | > | > measure the
> | > | > | > amperage.
> | > | > | > "JCW" > wrote in message
> | > | > | > ...
> | > | > | > > As a side to this, Is there a way for me to
> check
> | > why
> | > | > my original post
> | > | > | > > didn't show up on my reader, OE, ?
> | > | > | > > JCW
> | > | > | > > "CWatters" > wrote in
> | > message
> | > | > | > >
> | > ...
> | > | > | > > > Do you have a motherboard monitor program?
> What
> | > does
> | > | > it say about the
> | > | > | > > supply
> | > | > | > > > voltages?
> | > | > | > > >
> | > | > | > > >
> | > | > | > > >
> | > | > | > > > "JCW" > wrote in
> message
> | > | > | > > >
> ...
> | > | > | > > > > During normal operation my CPU fan noise
> slows
> | > and
> | > | > speeds up as I do
> | > | > | > > > > different operations, such as open a
> program
> | > or a
> | > | > different website.
> | > | > | I
> | > | > | > > > think
> | > | > | > > > > this may be a power supply issue. I am
> running
> | > a
> | > | > 350 watt PS, to run
> | > | > | 2
> | > | > | > > > HDs,
> | > | > | > > > > CDRW, ZIP drive, 4 extra case fans plus
> the
> | > CPU
> | > | > fan and stock Case
> | > | > | > fan.
> | > | > | > > > Any
> | > | > | > > > > help in this would be appreciated.
> Operation
> | > seems
> | > | > normal except the
> | > | > | > fan
> | > | > | > > > > noise slowing and speeding up instead of a
> | > steady
> | > | > sound. Thanks
> | > | > | > > > > JCW
> | > | > | > > > >
> | > | > | > > > >
> | > | > | > > >
> | > | > | > > >
> | > | > | > >
> | > | > | > >
> | > | > | >
> | > | > | >
> | > | > |
> | > | > |
> | > | >
> | > | >
> | > |
> | > |
> | >
> | >
> |
> |
>
>

[Unknown]

Xref: kermit microsoft.public.windowsxp.basics:102227

First off, there would be many many more indications of low line voltage
noticed before having a recorder put on the line. Some would be a shrunken
picture on a TV set which is far more sensitive than a computer, dim light
bulbs, etc. The power company here won't put on a recorder just because you
ask.
"Jim Macklin" > wrote in message
...
> If he has tried everything else, why would it be expensive.
> Power companies will put a line voltage recorder on your
> house for free last time I checked. They know that if it is
> low, you pay to upgrade the line. And if your power is low
> voltage you don't have much choice.
>
>
> "Unknown" > wrote in message
> .com...
> | Ridiculous expenses just to find out why the buzz of a fan
> changes.
> | "Jim Macklin" > wrote in message
> | ...
> | > nominal line voltage of 110-115 would be a problem if
> the
> | > voltage dropped to 93 volts. Depending on what other
> | > devices are on the same household circuits, this is very
> | > possible. Often houses have inadequate wiring and
> | > electrical service. Old homes were often wired for only
> 60
> | > AMPS service and have not been upgraded. Newer homes
> are
> | > built for a "price" and often have minimal service.
> There
> | > are TVs, water heaters, washing machines, stereo, and
> | > whether they are on separate circuit breakers they are
> all
> | > on the single household supply service.
> | > It is worth checking. One way would be to use a always
> ON
> | > UPS with power conditioning. Another would be to have
> the
> | > power company put a monitor on the service for a day or
> two
> | > and get a trace on the line voltage and the
> instantaneous
> | > variations.
> | >
> | >
> | > "Unknown" > wrote in message
> | >
> .com...
> | > | Because computers use switch mode power supplies they
> can
> | > easily tolerate a
> | > | + or - 15% main line change. Very very unlikely line
> | > voltage variations will
> | > | affect a computer.
> | > | "Jim Macklin" > wrote in
> message
> | > | ...
> | > | > Not just the computer PS, ,but the line voltage from
> | > your
> | > | > house can effect the computer.
> | > | >
> | > | > If your household power is close to the limits, the
> | > computer
> | > | > PS can get into a corner and the increased demand on
> the
> | > | > CPU/modem/hhd could cause a drop in voltage to the
> fans
> | > and
> | > | > the fan speed is controlled by voltage.
> | > | >
> | > | > Play a radio near the computer and you won't be
> bothered
> | > by
> | > | > slight rpm changes.
> | > | >
> | > | >
> | > | > "JCW" > wrote in message
> | > | > ...
> | > | > | Hello,
> | > | > | I am running extra fans because I live where
> summer
> | > temps
> | > | > reach in triple
> | > | > | digits and heat is a CPU and Hard Drive killer. I
> | > think I
> | > | > have come to the
> | > | > | conclusion that Bills answer is correct. My power
> | > supply
> | > | > is new and 350
> | > | > | Watts is surely enough. I replaced the CPU fan
> this
> | > | > morning and it changed
> | > | > | nothing except maybe a little quieter but it still
> | > | > fluctuates depending on
> | > | > | what I am doing with the computer. For instance as
> I
> | > type
> | > | > this it is steady,
> | > | > | but as soon as I hit the send button it will
> change
> | > | > momentarily and then
> | > | > | settle down. As far as measuring the amperage I
> don't
> | > know
> | > | > how to do that
> | > | > | but I did post the voltages in a previous post. As
> it
> | > | > stands right now I
> | > | > | will consider everything OK. Thanks to All
> | > | > |
> | > | > | JCW
> | > | > | "Unknown" > wrote in message
> | > | > |
> | >
> .com...
> | > | > | > Why are you running 4 extra case fans? Why not
> | > | > disconnect them just to
> | > | > | see
> | > | > | > if they are overloading the power supply. Eithe
> that
> | > or
> | > | > measure the
> | > | > | > amperage.
> | > | > | > "JCW" > wrote in message
> | > | > | > ...
> | > | > | > > As a side to this, Is there a way for me to
> check
> | > why
> | > | > my original post
> | > | > | > > didn't show up on my reader, OE, ?
> | > | > | > > JCW
> | > | > | > > "CWatters" > wrote in
> | > message
> | > | > | > >
> | > ...
> | > | > | > > > Do you have a motherboard monitor program?
> What
> | > does
> | > | > it say about the
> | > | > | > > supply
> | > | > | > > > voltages?
> | > | > | > > >
> | > | > | > > >
> | > | > | > > >
> | > | > | > > > "JCW" > wrote in
> message
> | > | > | > > >
> ...
> | > | > | > > > > During normal operation my CPU fan noise
> slows
> | > and
> | > | > speeds up as I do
> | > | > | > > > > different operations, such as open a
> program
> | > or a
> | > | > different website.
> | > | > | I
> | > | > | > > > think
> | > | > | > > > > this may be a power supply issue. I am
> running
> | > a
> | > | > 350 watt PS, to run
> | > | > | 2
> | > | > | > > > HDs,
> | > | > | > > > > CDRW, ZIP drive, 4 extra case fans plus
> the
> | > CPU
> | > | > fan and stock Case
> | > | > | > fan.
> | > | > | > > > Any
> | > | > | > > > > help in this would be appreciated.
> Operation
> | > seems
> | > | > normal except the
> | > | > | > fan
> | > | > | > > > > noise slowing and speeding up instead of a
> | > steady
> | > | > sound. Thanks
> | > | > | > > > > JCW
> | > | > | > > > >
> | > | > | > > > >
> | > | > | > > >
> | > | > | > > >
> | > | > | > >
> | > | > | > >
> | > | > | >
> | > | > | >
> | > | > |
> | > | > |
> | > | >
> | > | >
> | > |
> | > |
> | >
> | >
> |
> |
>
>