3 blown Power supply's in 6 months.

We designed in double and triple redundancy, but the final safety stage ran
till the last outcome - whatever that may have been!

Man, I would have hated to have to tell 20 widows and widowers that their
loved ones were dead because a $3.00 fuse blew and the exhauster went single
phase at 1/3 speed!

--
Regards,

Richard Urban

aka Crusty (-: Old B@stard :-)

If you knew as much as you think you know,
You would realize that you don't know what you thought you knew!


"Leythos" wrote in message
...
In article ,
says...
I would have wanted to have the motor draw too much current, and run for
another minute. That could be the difference between a massive explosion
and
loss of human life OR the opportunity for the plant personnel to vacate!

I would have been afraid that the load could be caused by a shaft
bearing or some other physical condition that could lead to
sparks/excessive heat.

We used double exhaust systems in our grain systems, same in the cement
systems, in case one purge system didn't work.

--
--

remove 999 in order to email me

We designed in double and triple redundancy, but the final safety stage ran
till the last outcome - whatever that may have been!

Man, I would have hated to have to tell 20 widows and widowers that their
loved ones were dead because a $3.00 fuse blew and the exhauster went single
phase at 1/3 speed!

--
Regards,

Richard Urban

aka Crusty (-: Old B@stard :-)

If you knew as much as you think you know,
You would realize that you don't know what you thought you knew!


"Leythos" wrote in message
...
In article ,
says...
I would have wanted to have the motor draw too much current, and run for
another minute. That could be the difference between a massive explosion
and
loss of human life OR the opportunity for the plant personnel to vacate!

I would have been afraid that the load could be caused by a shaft
bearing or some other physical condition that could lead to
sparks/excessive heat.

We used double exhaust systems in our grain systems, same in the cement
systems, in case one purge system didn't work.

--
--

remove 999 in order to email me

He's out checking his books now (-:

--
Regards,

Richard Urban

aka Crusty (-: Old B@stard :-)

If you knew as much as you think you know,
You would realize that you don't know what you thought you knew!


"Leythos" wrote in message
...
In article ,
says...
Another human life saved.. wow..

Mike, just in case you misunderstood my reply, I was also agreeing with
you. I've not seen much out of Tom that makes sense.

--
--

remove 999 in order to email me

He's out checking his books now (-:

--
Regards,

Richard Urban

aka Crusty (-: Old B@stard :-)

If you knew as much as you think you know,
You would realize that you don't know what you thought you knew!


"Leythos" wrote in message
...
In article ,
says...
Another human life saved.. wow..

Mike, just in case you misunderstood my reply, I was also agreeing with
you. I've not seen much out of Tom that makes sense.

--
--

remove 999 in order to email me

In article ,
says...
He's out checking his books now (-:

Yea, it was funny of him to tell me and a couple others that UPS's don't
protect from surges/transients, and then change the story to cheap UPS's
is what he meant.

--
--

remove 999 in order to email me

In article ,
says...
He's out checking his books now (-:

Yea, it was funny of him to tell me and a couple others that UPS's don't
protect from surges/transients, and then change the story to cheap UPS's
is what he meant.

--
--

remove 999 in order to email me

"Leythos" wrote in message
...
In article , Vanguard says...
"J-Dee" wrote in message
...
im from UK and every power cable has to have a fuse in UK so
suppose
it
depends where your from. if you use fuses it could well be a
problem.


If that is true then the fuse needs to be the slow-blow type. The
sudden burst of amps surging through a normal fuse could easily blow
it
when the computer is powered on. The slow-blow fuse will prevent it
from opening for a short one-time surge. However, if the fuse in the
power cord blew then the OP would be asking why he has to keep
replacing
power cords or the fuses in them. He is saying that he is replacing
PSUs. Even if he replaced the PSU, it wouldn't work until he
replaced
the power cord fuse, so he would've still mentioned having to replace
fuses. Doesn't sound like it is a fuse problem.

Actually the OP stated, later, that he found a fuse blown inside the
PSU
once he opened it.



I saw that, which comes back to the idea that he is sucking out more
amps than the PSU is really rated for. Cheapie PSUs use a fuse so when
it blows then the PSU is useless (except for those willing and capable
to do the repair). So his 400W units really can't put out anywhere near
that and can't even manage to handle whatever is his real load. I've
seen cheapie PSUs that couldn't manage to provide half of their rated
wattage, and 200W is probably too low for his computer.

--
__________________________________________________ __________
** Post your replies to the newsgroup - Share with others **
For e-mail Reply: remove "DELETE", add "~VN56~" to Subject.
__________________________________________________ __________

"Leythos" wrote in message
...
In article , Vanguard says...
"J-Dee" wrote in message
...
im from UK and every power cable has to have a fuse in UK so
suppose
it
depends where your from. if you use fuses it could well be a
problem.


If that is true then the fuse needs to be the slow-blow type. The
sudden burst of amps surging through a normal fuse could easily blow
it
when the computer is powered on. The slow-blow fuse will prevent it
from opening for a short one-time surge. However, if the fuse in the
power cord blew then the OP would be asking why he has to keep
replacing
power cords or the fuses in them. He is saying that he is replacing
PSUs. Even if he replaced the PSU, it wouldn't work until he
replaced
the power cord fuse, so he would've still mentioned having to replace
fuses. Doesn't sound like it is a fuse problem.

Actually the OP stated, later, that he found a fuse blown inside the
PSU
once he opened it.



I saw that, which comes back to the idea that he is sucking out more
amps than the PSU is really rated for. Cheapie PSUs use a fuse so when
it blows then the PSU is useless (except for those willing and capable
to do the repair). So his 400W units really can't put out anywhere near
that and can't even manage to handle whatever is his real load. I've
seen cheapie PSUs that couldn't manage to provide half of their rated
wattage, and 200W is probably too low for his computer.

--
__________________________________________________ __________
** Post your replies to the newsgroup - Share with others **
For e-mail Reply: remove "DELETE", add "~VN56~" to Subject.
__________________________________________________ __________

Yes, I saw that!

--
Regards,

Richard Urban

aka Crusty (-: Old B@stard :-)

If you knew as much as you think you know,
You would realize that you don't know what you thought you knew!


"Leythos" wrote in message
...
In article ,
says...
He's out checking his books now (-:

Yea, it was funny of him to tell me and a couple others that UPS's don't
protect from surges/transients, and then change the story to cheap UPS's
is what he meant.

--
--

remove 999 in order to email me

Yes, I saw that!

--
Regards,

Richard Urban

aka Crusty (-: Old B@stard :-)

If you knew as much as you think you know,
You would realize that you don't know what you thought you knew!


"Leythos" wrote in message
...
In article ,
says...
He's out checking his books now (-:

Yea, it was funny of him to tell me and a couple others that UPS's don't
protect from surges/transients, and then change the story to cheap UPS's
is what he meant.

--
--

remove 999 in order to email me

In article , Vanguard says...
I saw that, which comes back to the idea that he is sucking out more
amps than the PSU is really rated for. Cheapie PSUs use a fuse so when
it blows then the PSU is useless (except for those willing and capable
to do the repair). So his 400W units really can't put out anywhere near
that and can't even manage to handle whatever is his real load. I've
seen cheapie PSUs that couldn't manage to provide half of their rated
wattage, and 200W is probably too low for his computer.

I bought a couple really nice Antec 550W PSU units, they were nice
except for one little flaw - they contain two variable speed fans that
run based on temperature of air flowing through the PSU. I found that
the fans ran around 1100RPM and were unable to keep the system cool, I
opened the cases and setup the fans to run on a fixed +12v and they run
around 3500RPM and the systems stay a lot cooler now.

--
--

remove 999 in order to email me

In article , Vanguard says...
I saw that, which comes back to the idea that he is sucking out more
amps than the PSU is really rated for. Cheapie PSUs use a fuse so when
it blows then the PSU is useless (except for those willing and capable
to do the repair). So his 400W units really can't put out anywhere near
that and can't even manage to handle whatever is his real load. I've
seen cheapie PSUs that couldn't manage to provide half of their rated
wattage, and 200W is probably too low for his computer.

I bought a couple really nice Antec 550W PSU units, they were nice
except for one little flaw - they contain two variable speed fans that
run based on temperature of air flowing through the PSU. I found that
the fans ran around 1100RPM and were unable to keep the system cool, I
opened the cases and setup the fans to run on a fixed +12v and they run
around 3500RPM and the systems stay a lot cooler now.

--
--

remove 999 in order to email me

I didn't misunderstand.. :-)

I was just so glad that the little fuse in the PS saved a life, is all.. lol

--
Mike Hall
MVP - Windows Shell/User
http://dts-l.org/goodpost.htm





"Leythos" wrote in message
...
In article ,
says...
Another human life saved.. wow..

Mike, just in case you misunderstood my reply, I was also agreeing with
you. I've not seen much out of Tom that makes sense.

--
--

remove 999 in order to email me

I didn't misunderstand.. :-)

I was just so glad that the little fuse in the PS saved a life, is all.. lol

--
Mike Hall
MVP - Windows Shell/User
http://dts-l.org/goodpost.htm





"Leythos" wrote in message
...
In article ,
says...
Another human life saved.. wow..

Mike, just in case you misunderstood my reply, I was also agreeing with
you. I've not seen much out of Tom that makes sense.

--
--

remove 999 in order to email me

Being a former electrician your AC circuit is not grounded. No amount of
surge protection will help you . Surge protectors rely mainly on the
circuits ground fault to discharge a surge in the line when it happens.

--
Peter

Please reply to newsgroup for the benefit of others.

"RobW" wrote in message
...
Hi all,
I have a P.C. that keeps blowing power supply's.
It is P4 2.4, Gigabyte GA-8IG100MK Main Board in a "whitebox" of
unknown make.
Low spec AGP video card
2 x Optical drives
1 x 80gig Seagate Barracuda
The last power supply it blew was a Unicase 400W Silent power supply.


I has been plugged into a middle of the road surge protector the whole
time (which seems to fine.)
This has all happened in the same house; however there hasn't been any
other power problems.

I'm thinking maybe it's the case because the problems happend when the
unit is being switched o every time.
Anyone else seen something like this?
TIA

Rob