How to know if a power supply unit would supply enouth power for 3 HDDs, a DVD-ROM and a DVD-RAM drives?

Hello
How to know if a power supply unit of my computer case would supply enough
power for 3 HDDs, a DVD-ROM and a DVD-RAM drives? I want to add a third HDD.

It would help if you included info such as the Wattage of your PSU.
What is up with all the odd questions anyways? I would suggest using at
least a 400 Watt PSU for that system though.

----
Nathan McNulty


Dmitriy Kopnichev wrote:
Hello
How to know if a power supply unit of my computer case would supply enough
power for 3 HDDs, a DVD-ROM and a DVD-RAM drives? I want to add a third HDD.

My PSU is 230 Watt.
"Nathan McNulty" wrote in message
...
It would help if you included info such as the Wattage of your PSU. What
is up with all the odd questions anyways? I would suggest using at least
a 400 Watt PSU for that system though.

----
Nathan McNulty


Dmitriy Kopnichev wrote:
Hello
How to know if a power supply unit of my computer case would supply
enough power for 3 HDDs, a DVD-ROM and a DVD-RAM drives? I want to add a
third HDD.

Get a new PSU. You are going to hurt your system running all those
devices on that PSU. I recommend at least a 400 Watt and go with a
brand name like Antec. They may cost more, but they are worth it.

----
Nathan McNulty

Dmitriy Kopnichev wrote:
My PSU is 230 Watt.
"Nathan McNulty" wrote in message
...

It would help if you included info such as the Wattage of your PSU. What
is up with all the odd questions anyways? I would suggest using at least
a 400 Watt PSU for that system though.

----
Nathan McNulty


Dmitriy Kopnichev wrote:

Hello
How to know if a power supply unit of my computer case would supply
enough power for 3 HDDs, a DVD-ROM and a DVD-RAM drives? I want to add a
third HDD.

Dmitriy Kopnichev wrote:
Hello
How to know if a power supply unit of my computer case would supply enough
power for 3 HDDs, a DVD-ROM and a DVD-RAM drives? I want to add a third HDD.



Try this: http://www.jscustompcs.com/power_supply/

Also, with all that stuff in your case, you should look at airflow.
Commodity cases typically don't have enough airflow for 5 drives and
a current CPU.
--
Cheers, Bob

"Dmitriy Kopnichev" wrote in message
...
Hello
How to know if a power supply unit of my computer case would supply
enough power for 3 HDDs, a DVD-ROM and a DVD-RAM drives? I want to
add a third HDD.

Start he

http://www6.tomshardware.com/howto/20040122/

The major issue with power supplies is not the number of drives, but the
amount of RAM.

Apart from the watts available, which should be 300W: one needs to have
lots of power [Amps].

Current High Speed DD-RAM [DDR2] is a power hog.

DDR2 operates at 1.8V whereas DDR1 operates at 2.5V. The DDR2 module is the
same length as the DDR1 module.

It is considered possible that a DDR2 module may be forced into a DDR1
socket. Starting the system will immediately kill the DDR2 chip by way of
Electrical Over Stress (EOS).

NEVER ATTEMPT TO INSTALL A DDR2 MODULE INTO A DDR1 SOCKET.


"Frank" wrote:


"Dmitriy Kopnichev" wrote in message
...
Hello
How to know if a power supply unit of my computer case would supply
enough power for 3 HDDs, a DVD-ROM and a DVD-RAM drives? I want to
add a third HDD.

Start he

http://www6.tomshardware.com/howto/20040122/

My PSU is 250 Watt.
"Nathan McNulty" wrote in message
...
It would help if you included info such as the Wattage of your PSU. What
is up with all the odd questions anyways? I would suggest using at least
a 400 Watt PSU for that system though.

----
Nathan McNulty


Dmitriy Kopnichev wrote:
Hello
How to know if a power supply unit of my computer case would supply
enough power for 3 HDDs, a DVD-ROM and a DVD-RAM drives? I want to add a
third HDD.

That is still going to be too low for what you are running. You risk
data loss, system problem, and even damaged hardware if you run them for
extended periods of time with too little power.

----
Nathan McNulty

Dmitriy Kopnichev wrote:
My PSU is 250 Watt.
"Nathan McNulty" wrote in message
...

It would help if you included info such as the Wattage of your PSU. What
is up with all the odd questions anyways? I would suggest using at least
a 400 Watt PSU for that system though.

----
Nathan McNulty


Dmitriy Kopnichev wrote:

Hello
How to know if a power supply unit of my computer case would supply
enough power for 3 HDDs, a DVD-ROM and a DVD-RAM drives? I want to add a
third HDD.

Here are some numbers [for the OP] to indicate what you
might need. You can get numbers for your system using
EVEREST Home from www.lavalys.com Also check the sources at
Intel, AMD and Antec-Inc.
http://www.epanorama.net/links/psu_computer.html
and
http://computer.howstuffworks.com/fr...ndex_cases.htm
**********************************************8
From PC Power and Cooling
"Products: Power Supplies:
How Much Power Do You Need?



Component Requirement Line(s) Used
AGP Video Card 30 - 50W +3.3V
Average PCI Card 5 - 10W +5V
10/100 NIC 4W +3.3V
SCSI Controller PCI Card 20W +3.3V and +5V
Floppy Drive 5W +5V
CD-ROM 10 - 25W +5V and +12V
DVD-ROM 10 - 25W +5V and +12V
CD-RW 10 - 25W +5V and +12V
7200rpm IDE Hard Drive 5 - 20W +5V and +12V
10,000rpm SCSI Drive 10 - 40W +5V and +12V
Case/CPU Fans 3W (ea.) +12V
Motherboard (w/o CPU or RAM) 25 - 40W +3.3V and +5V
RAM 8W per 128MB +3.3V
Pentium III Processor 38W +5V
Pentium 4 Processor 70W +12V
AMD Athlon Processor 70W +12V


For overall power supply wattage, add the requirement for
each device in your system, then multiply by 1.8. (The
multiplier takes into account that today's systems draw
disproportionally on the +12V output. Furthermore, power
supplies are more efficient and reliable when loaded to
30% - 70% of maximum capacity.)"
*******************************************


My Celeron can use 88 Watts, a P4 could use much more.
A motherboard can use 50 Watts
A video card 50 Watts depending on model
Each hard drive 25 Watts, an optical drive would use 25
Watts to read and maybe 40 Watts while writing.
Each RAM stick uses 10 Watts or so/per 128 MB

You need extra capacity to handle start-up surge loads.

--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.



"Nathan McNulty" wrote in message
...
| That is still going to be too low for what you are
running. You risk
| data loss, system problem, and even damaged hardware if
you run them for
| extended periods of time with too little power.
|
| ----
| Nathan McNulty
|
| Dmitriy Kopnichev wrote:
| My PSU is 250 Watt.
| "Nathan McNulty" wrote in message
| ...
|
| It would help if you included info such as the Wattage
of your PSU. What
| is up with all the odd questions anyways? I would
suggest using at least
| a 400 Watt PSU for that system though.
|
| ----
| Nathan McNulty
|
|
| Dmitriy Kopnichev wrote:
|
| Hello
| How to know if a power supply unit of my computer case
would supply
| enough power for 3 HDDs, a DVD-ROM and a DVD-RAM
drives? I want to add a
| third HDD.
|
|
|

Thanks.
"Jim Macklin" wrote in message
...
Here are some numbers [for the OP] to indicate what you
might need. You can get numbers for your system using
EVEREST Home from www.lavalys.com Also check the sources at
Intel, AMD and Antec-Inc.
http://www.epanorama.net/links/psu_computer.html
and
http://computer.howstuffworks.com/fr...ndex_cases.htm
**********************************************8
From PC Power and Cooling
"Products: Power Supplies:
How Much Power Do You Need?



Component Requirement Line(s) Used
AGP Video Card 30 - 50W +3.3V
Average PCI Card 5 - 10W +5V
10/100 NIC 4W +3.3V
SCSI Controller PCI Card 20W +3.3V and +5V
Floppy Drive 5W +5V
CD-ROM 10 - 25W +5V and +12V
DVD-ROM 10 - 25W +5V and +12V
CD-RW 10 - 25W +5V and +12V
7200rpm IDE Hard Drive 5 - 20W +5V and +12V
10,000rpm SCSI Drive 10 - 40W +5V and +12V
Case/CPU Fans 3W (ea.) +12V
Motherboard (w/o CPU or RAM) 25 - 40W +3.3V and +5V
RAM 8W per 128MB +3.3V
Pentium III Processor 38W +5V
Pentium 4 Processor 70W +12V
AMD Athlon Processor 70W +12V


For overall power supply wattage, add the requirement for
each device in your system, then multiply by 1.8. (The
multiplier takes into account that today's systems draw
disproportionally on the +12V output. Furthermore, power
supplies are more efficient and reliable when loaded to
30% - 70% of maximum capacity.)"
*******************************************


My Celeron can use 88 Watts, a P4 could use much more.
A motherboard can use 50 Watts
A video card 50 Watts depending on model
Each hard drive 25 Watts, an optical drive would use 25
Watts to read and maybe 40 Watts while writing.
Each RAM stick uses 10 Watts or so/per 128 MB

You need extra capacity to handle start-up surge loads.

--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.



"Nathan McNulty" wrote in message
...
| That is still going to be too low for what you are
running. You risk
| data loss, system problem, and even damaged hardware if
you run them for
| extended periods of time with too little power.
|
| ----
| Nathan McNulty
|
| Dmitriy Kopnichev wrote:
| My PSU is 250 Watt.
| "Nathan McNulty" wrote in message
| ...
|
| It would help if you included info such as the Wattage
of your PSU. What
| is up with all the odd questions anyways? I would
suggest using at least
| a 400 Watt PSU for that system though.
|
| ----
| Nathan McNulty
|
|
| Dmitriy Kopnichev wrote:
|
| Hello
| How to know if a power supply unit of my computer case
would supply
| enough power for 3 HDDs, a DVD-ROM and a DVD-RAM
drives? I want to add a
| third HDD.
|
|
|

You're welcome.


"Dmitriy Kopnichev" wrote in message
...
| Thanks.
| "Jim Macklin" wrote
in message
| ...
| Here are some numbers [for the OP] to indicate what you
| might need. You can get numbers for your system using
| EVEREST Home from www.lavalys.com Also check the
sources at
| Intel, AMD and Antec-Inc.
| http://www.epanorama.net/links/psu_computer.html
| and
|
http://computer.howstuffworks.com/fr...ndex_cases.htm
| **********************************************8
| From PC Power and Cooling
| "Products: Power Supplies:
| How Much Power Do You Need?
|
|
|
| Component Requirement Line(s) Used
| AGP Video Card 30 - 50W +3.3V
| Average PCI Card 5 - 10W +5V
| 10/100 NIC 4W +3.3V
| SCSI Controller PCI Card 20W +3.3V and +5V
| Floppy Drive 5W +5V
| CD-ROM 10 - 25W +5V and +12V
| DVD-ROM 10 - 25W +5V and +12V
| CD-RW 10 - 25W +5V and +12V
| 7200rpm IDE Hard Drive 5 - 20W +5V and +12V
| 10,000rpm SCSI Drive 10 - 40W +5V and +12V
| Case/CPU Fans 3W (ea.) +12V
| Motherboard (w/o CPU or RAM) 25 - 40W +3.3V and +5V
| RAM 8W per 128MB +3.3V
| Pentium III Processor 38W +5V
| Pentium 4 Processor 70W +12V
| AMD Athlon Processor 70W +12V
|
|
| For overall power supply wattage, add the requirement
for
| each device in your system, then multiply by 1.8. (The
| multiplier takes into account that today's systems draw
| disproportionally on the +12V output. Furthermore, power
| supplies are more efficient and reliable when loaded to
| 30% - 70% of maximum capacity.)"
| *******************************************
|
|
| My Celeron can use 88 Watts, a P4 could use much more.
| A motherboard can use 50 Watts
| A video card 50 Watts depending on model
| Each hard drive 25 Watts, an optical drive would use 25
| Watts to read and maybe 40 Watts while writing.
| Each RAM stick uses 10 Watts or so/per 128 MB
|
| You need extra capacity to handle start-up surge loads.
|
| --
| The people think the Constitution protects their rights;
| But government sees it as an obstacle to be overcome.
|
|
|
| "Nathan McNulty" wrote in message
| ...
| | That is still going to be too low for what you are
| running. You risk
| | data loss, system problem, and even damaged hardware
if
| you run them for
| | extended periods of time with too little power.
| |
| | ----
| | Nathan McNulty
| |
| | Dmitriy Kopnichev wrote:
| | My PSU is 250 Watt.
| | "Nathan McNulty" wrote in message
| | ...
| |
| | It would help if you included info such as the
Wattage
| of your PSU. What
| | is up with all the odd questions anyways? I would
| suggest using at least
| | a 400 Watt PSU for that system though.
| |
| | ----
| | Nathan McNulty
| |
| |
| | Dmitriy Kopnichev wrote:
| |
| | Hello
| | How to know if a power supply unit of my computer
case
| would supply
| | enough power for 3 HDDs, a DVD-ROM and a DVD-RAM
| drives? I want to add a
| | third HDD.
| |
| |
| |
|
|
|
|

How to know in the EVEREST if my PSU is enough for my hardware? What are
minimum admissible "Voltage Values" for "CPU Core", "+1.5 V", "+3.3 V", "+5
V", "+12 V"?
"Jim Macklin" wrote in message
...
Here are some numbers [for the OP] to indicate what you
might need. You can get numbers for your system using
EVEREST Home from www.lavalys.com Also check the sources at
Intel, AMD and Antec-Inc.
http://www.epanorama.net/links/psu_computer.html
and
http://computer.howstuffworks.com/fr...ndex_cases.htm
**********************************************8
From PC Power and Cooling
"Products: Power Supplies:
How Much Power Do You Need?



Component Requirement Line(s) Used
AGP Video Card 30 - 50W +3.3V
Average PCI Card 5 - 10W +5V
10/100 NIC 4W +3.3V
SCSI Controller PCI Card 20W +3.3V and +5V
Floppy Drive 5W +5V
CD-ROM 10 - 25W +5V and +12V
DVD-ROM 10 - 25W +5V and +12V
CD-RW 10 - 25W +5V and +12V
7200rpm IDE Hard Drive 5 - 20W +5V and +12V
10,000rpm SCSI Drive 10 - 40W +5V and +12V
Case/CPU Fans 3W (ea.) +12V
Motherboard (w/o CPU or RAM) 25 - 40W +3.3V and +5V
RAM 8W per 128MB +3.3V
Pentium III Processor 38W +5V
Pentium 4 Processor 70W +12V
AMD Athlon Processor 70W +12V


For overall power supply wattage, add the requirement for
each device in your system, then multiply by 1.8. (The
multiplier takes into account that today's systems draw
disproportionally on the +12V output. Furthermore, power
supplies are more efficient and reliable when loaded to
30% - 70% of maximum capacity.)"
*******************************************


My Celeron can use 88 Watts, a P4 could use much more.
A motherboard can use 50 Watts
A video card 50 Watts depending on model
Each hard drive 25 Watts, an optical drive would use 25
Watts to read and maybe 40 Watts while writing.
Each RAM stick uses 10 Watts or so/per 128 MB

You need extra capacity to handle start-up surge loads.

--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.



"Nathan McNulty" wrote in message
...
| That is still going to be too low for what you are
running. You risk
| data loss, system problem, and even damaged hardware if
you run them for
| extended periods of time with too little power.
|
| ----
| Nathan McNulty
|
| Dmitriy Kopnichev wrote:
| My PSU is 250 Watt.
| "Nathan McNulty" wrote in message
| ...
|
| It would help if you included info such as the Wattage
of your PSU. What
| is up with all the odd questions anyways? I would
suggest using at least
| a 400 Watt PSU for that system though.
|
| ----
| Nathan McNulty
|
|
| Dmitriy Kopnichev wrote:
|
| Hello
| How to know if a power supply unit of my computer case
would supply
| enough power for 3 HDDs, a DVD-ROM and a DVD-RAM
drives? I want to add a
| third HDD.
|
|
|

EVEREST will show you power required by the CPU and what
devices are installed. All power supplies have same voltage
standards. If you try to draw more power than rated power,
the voltage will drop to the low end of the range or below.

There is no other method that I know of to plan in advance
of a purchase than reading the spec sheets and using a
calculator to add up the totals.
My EVEREST report on the CPU...
--------[ EVEREST Home Edition (c) 2003, 2004 Lavalys,
Inc. ]-----------------------------------------------------------

Version
EVEREST v1.10.106
Homepage
http://www.lavalys.com/
Report Type Quick
Report
Computer
Generator
J.H.Macklin
Operating System
Microsoft Windows XP Professional 5.1.2600 (WinXP Retail)
Date
2004-09-07
Time 01:30


--------[
CPU ]---------------------------------------------------------------------------------------------------------

CPU Properties:
CPU Type
Intel Celeron 4, 1700 MHz (17 x 100)
CPU Alias
Willamette Lite, Willamette-128
CPU Stepping E0
Instruction Set x86,
MMX, SSE, SSE2
Original Clock 1700
MHz
Engineering Sample No
L1 Trace Cache 12K
Instructions
L1 Data Cache 8 KB
L2 Cache 128
KB (On-Die, ATC, Full-Speed)

CPU Physical Info:
Package Type 478
Pin uPGA
Package Size 3.50
cm x 3.50 cm
Transistors 42
million
Process Technology 6M,
0.18 um, CMOS
Die Size 217
mm2
Core Voltage 1.75
V
I/O Voltage 1.75
V
Typical Power
63.5 - 66.1 W
(depending on clock speed)
Maximum Power 84 -
88 W (depending on clock speed)

CPU Manufacturer:
Company Name
Intel Corporation
Product Information
http://www.intel.com/products/browse/processor.htm

CPU Utilization:
CPU #1 6 %

SNIP
------------------------------------------------------------------------------------------------------------------------

The names of actual companies and products mentioned herein
may be the trademarks of their respective owners.
*****************************



"Dmitriy Kopnichev" wrote in message
...
| How to know in the EVEREST if my PSU is enough for my
hardware? What are
| minimum admissible "Voltage Values" for "CPU Core", "+1.5
V", "+3.3 V", "+5
| V", "+12 V"?
| "Jim Macklin" wrote
in message
| ...
| Here are some numbers [for the OP] to indicate what you
| might need. You can get numbers for your system using
| EVEREST Home from www.lavalys.com Also check the
sources at
| Intel, AMD and Antec-Inc.
| http://www.epanorama.net/links/psu_computer.html
| and
|
http://computer.howstuffworks.com/fr...ndex_cases.htm
| **********************************************8
| From PC Power and Cooling
| "Products: Power Supplies:
| How Much Power Do You Need?
|
|
|
| Component Requirement Line(s) Used
| AGP Video Card 30 - 50W +3.3V
| Average PCI Card 5 - 10W +5V
| 10/100 NIC 4W +3.3V
| SCSI Controller PCI Card 20W +3.3V and +5V
| Floppy Drive 5W +5V
| CD-ROM 10 - 25W +5V and +12V
| DVD-ROM 10 - 25W +5V and +12V
| CD-RW 10 - 25W +5V and +12V
| 7200rpm IDE Hard Drive 5 - 20W +5V and +12V
| 10,000rpm SCSI Drive 10 - 40W +5V and +12V
| Case/CPU Fans 3W (ea.) +12V
| Motherboard (w/o CPU or RAM) 25 - 40W +3.3V and +5V
| RAM 8W per 128MB +3.3V
| Pentium III Processor 38W +5V
| Pentium 4 Processor 70W +12V
| AMD Athlon Processor 70W +12V
|
|
| For overall power supply wattage, add the requirement
for
| each device in your system, then multiply by 1.8. (The
| multiplier takes into account that today's systems draw
| disproportionally on the +12V output. Furthermore, power
| supplies are more efficient and reliable when loaded to
| 30% - 70% of maximum capacity.)"
| *******************************************
|
|
| My Celeron can use 88 Watts, a P4 could use much more.
| A motherboard can use 50 Watts
| A video card 50 Watts depending on model
| Each hard drive 25 Watts, an optical drive would use 25
| Watts to read and maybe 40 Watts while writing.
| Each RAM stick uses 10 Watts or so/per 128 MB
|
| You need extra capacity to handle start-up surge loads.
|
| --
| The people think the Constitution protects their rights;
| But government sees it as an obstacle to be overcome.
|
|
|
| "Nathan McNulty" wrote in message
| ...
| | That is still going to be too low for what you are
| running. You risk
| | data loss, system problem, and even damaged hardware
if
| you run them for
| | extended periods of time with too little power.
| |
| | ----
| | Nathan McNulty
| |
| | Dmitriy Kopnichev wrote:
| | My PSU is 250 Watt.
| | "Nathan McNulty" wrote in message
| | ...
| |
| | It would help if you included info such as the
Wattage
| of your PSU. What
| | is up with all the odd questions anyways? I would
| suggest using at least
| | a 400 Watt PSU for that system though.
| |
| | ----
| | Nathan McNulty
| |
| |
| | Dmitriy Kopnichev wrote:
| |
| | Hello
| | How to know if a power supply unit of my computer
case
| would supply
| | enough power for 3 HDDs, a DVD-ROM and a DVD-RAM
| drives? I want to add a
| | third HDD.
| |
| |
| |
|
|
|
|

Will EVEREST v1.1 alert me if the voltage will drop to the low end of the
range or below? What are the admissible "ranges" for "Voltage Values" for
"CPU Core", "+1.5 V", "+3.3 V", "+5 V", "+12 V"?
"Jim Macklin" wrote in message
...
EVEREST will show you power required by the CPU and what
devices are installed. All power supplies have same voltage
standards. If you try to draw more power than rated power,
the voltage will drop to the low end of the range or below.

There is no other method that I know of to plan in advance
of a purchase than reading the spec sheets and using a
calculator to add up the totals.
My EVEREST report on the CPU...
--------[ EVEREST Home Edition (c) 2003, 2004 Lavalys,
Inc. ]-----------------------------------------------------------

Version
EVEREST v1.10.106
Homepage
http://www.lavalys.com/
Report Type Quick
Report
Computer
Generator
J.H.Macklin
Operating System
Microsoft Windows XP Professional 5.1.2600 (WinXP Retail)
Date
2004-09-07
Time 01:30


--------[
CPU ]---------------------------------------------------------------------------------------------------------

CPU Properties:
CPU Type
Intel Celeron 4, 1700 MHz (17 x 100)
CPU Alias
Willamette Lite, Willamette-128
CPU Stepping E0
Instruction Set x86,
MMX, SSE, SSE2
Original Clock 1700
MHz
Engineering Sample No
L1 Trace Cache 12K
Instructions
L1 Data Cache 8 KB
L2 Cache 128
KB (On-Die, ATC, Full-Speed)

CPU Physical Info:
Package Type 478
Pin uPGA
Package Size 3.50
cm x 3.50 cm
Transistors 42
million
Process Technology 6M,
0.18 um, CMOS
Die Size 217
mm2
Core Voltage 1.75
V
I/O Voltage 1.75
V
Typical Power
63.5 - 66.1 W
(depending on clock speed)
Maximum Power 84 -
88 W (depending on clock speed)

CPU Manufacturer:
Company Name
Intel Corporation
Product Information
http://www.intel.com/products/browse/processor.htm

CPU Utilization:
CPU #1 6 %

SNIP
------------------------------------------------------------------------------------------------------------------------

The names of actual companies and products mentioned herein
may be the trademarks of their respective owners.
*****************************



"Dmitriy Kopnichev" wrote in message
...
| How to know in the EVEREST if my PSU is enough for my
hardware? What are
| minimum admissible "Voltage Values" for "CPU Core", "+1.5
V", "+3.3 V", "+5
| V", "+12 V"?
| "Jim Macklin" wrote
in message
| ...
| Here are some numbers [for the OP] to indicate what you
| might need. You can get numbers for your system using
| EVEREST Home from www.lavalys.com Also check the
sources at
| Intel, AMD and Antec-Inc.
| http://www.epanorama.net/links/psu_computer.html
| and
|
http://computer.howstuffworks.com/fr...ndex_cases.htm
| **********************************************8
| From PC Power and Cooling
| "Products: Power Supplies:
| How Much Power Do You Need?
|
|
|
| Component Requirement Line(s) Used
| AGP Video Card 30 - 50W +3.3V
| Average PCI Card 5 - 10W +5V
| 10/100 NIC 4W +3.3V
| SCSI Controller PCI Card 20W +3.3V and +5V
| Floppy Drive 5W +5V
| CD-ROM 10 - 25W +5V and +12V
| DVD-ROM 10 - 25W +5V and +12V
| CD-RW 10 - 25W +5V and +12V
| 7200rpm IDE Hard Drive 5 - 20W +5V and +12V
| 10,000rpm SCSI Drive 10 - 40W +5V and +12V
| Case/CPU Fans 3W (ea.) +12V
| Motherboard (w/o CPU or RAM) 25 - 40W +3.3V and +5V
| RAM 8W per 128MB +3.3V
| Pentium III Processor 38W +5V
| Pentium 4 Processor 70W +12V
| AMD Athlon Processor 70W +12V
|
|
| For overall power supply wattage, add the requirement
for
| each device in your system, then multiply by 1.8. (The
| multiplier takes into account that today's systems draw
| disproportionally on the +12V output. Furthermore, power
| supplies are more efficient and reliable when loaded to
| 30% - 70% of maximum capacity.)"
| *******************************************
|
|
| My Celeron can use 88 Watts, a P4 could use much more.
| A motherboard can use 50 Watts
| A video card 50 Watts depending on model
| Each hard drive 25 Watts, an optical drive would use 25
| Watts to read and maybe 40 Watts while writing.
| Each RAM stick uses 10 Watts or so/per 128 MB
|
| You need extra capacity to handle start-up surge loads.
|
| --
| The people think the Constitution protects their rights;
| But government sees it as an obstacle to be overcome.
|
|
|
| "Nathan McNulty" wrote in message
| ...
| | That is still going to be too low for what you are
| running. You risk
| | data loss, system problem, and even damaged hardware
if
| you run them for
| | extended periods of time with too little power.
| |
| | ----
| | Nathan McNulty
| |
| | Dmitriy Kopnichev wrote:
| | My PSU is 250 Watt.
| | "Nathan McNulty" wrote in message
| | ...
| |
| | It would help if you included info such as the
Wattage
| of your PSU. What
| | is up with all the odd questions anyways? I would
| suggest using at least
| | a 400 Watt PSU for that system though.
| |
| | ----
| | Nathan McNulty
| |
| |
| | Dmitriy Kopnichev wrote:
| |
| | Hello
| | How to know if a power supply unit of my computer
case
| would supply
| | enough power for 3 HDDs, a DVD-ROM and a DVD-RAM
| drives? I want to add a
| | third HDD.
| |
| |
| |
|
|
|
|