Power Supply Needs

sno2dude · 12-September-02, 02:38 PM

Hey..... Im looking for a decent calculator or other such site/app that will calculate what power supply will be best for my computer..... any help would be appreciated.

DuckWarrior · 12-September-02, 03:10 PM

You really should do a search in the forums, I have posted this multiple times.

Add up only the components below that your system has to determine wattage:

AGP video card - 35-50W
PCI video card - 35W
AMD Athlon 900MHz-1.3GHz - 50W-65W
AMD Athlon XP 1.47MHz-1.73GHz - 60-75W
AMD Duron 1.0MHz-1.3GHz - 50W
Intel Pentium III 800MHz-1.4GHz - 40W-55W
Intel Pentium 4 1.4GHz-2.0GHz - 65W-85W
Intel Pentium 4 Northwood 1.6GHz-2.0GHz - 60W-75W
Intel Pentium 4 Northwood 2.2GHz-2.53GHz - 80W-90W
Intel Celeron 1.0GHz-1.1GHz - 35W
Intel Celeron 1.2GHz-1.8GHz - 45W-65W
ATX Motherboard - 40W-65W
128MB RAM - 10W
256MB RAM - 20W
24X or higher IDE CD-RW Drive - 35W
32X or higher IDE CD-ROM Drive - 25W
10x or higher IDE DVD-ROM Drive - 20W
SCSI CD-RW Drive - 17W
SCSI CD-ROM Drive - 12W
5,400RPM IDE Hard Drive - 13W
7,200RPM IDE Hard Drive - 18W
7,200RPM SCSI Hard Drive - 24W
10,000RPM SCSI Hard Drive - 30W
15,000RPM SCSI Hard Drive - 45W
Floppy Drive - 5W
Network Card - 4W
Modem - 5W
Sound Card - 5W
SCSI Controller Card - 20W
Firewire/USB 2.0 Controller Card - 40W
Case Fan - 3W
CPU Fan - 3W

The wattage numbers above are estimates and may be rounded to the nearest 5 watts. The given wattage may only reach the specified level during power-up or during peak usage. Always purchase a power supply with a bit more wattage than you calculate you'll need, to make room for future upgrades.
PS Dont forget anything

Also 256MB is not enough for XP! 512 minimum. XP runs 170MB at idle. Running 4 windows and Winamp3 I use 251MB.
If you Game at all you can hit over 400MB easy.

lcpiper · 12-September-02, 03:23 PM

Duck, I think Sno2dude was just caught a little off guard. I don't think he imagined that this had been covered in such excellent detail previously.

Maybe it should go in the mod-link DB or get a sticky somewhere ?

Teranfirbt · 02-March-03, 01:46 AM

I dont have any probs running XP with 256 ram... most of my games only lose 2-3 FPS vs Win98

Red02 · 03-March-03, 11:10 PM

were did that come from?!?!?!?!?! anything above 300w for a standard case is good. if your doin moddin with CC and Fans i would suggest at least 400-450w

Tom10167 · 03-March-03, 11:41 PM

Basically, spend the extra 25 bucks, get a 500w, and never ever have to worry about it again.

12-September-02, 02:38 PM		#1 (permalink)
sno2dude Apex Techie Lite	Power Supply Needs Hey..... Im looking for a decent calculator or other such site/app that will calculate what power supply will be best for my computer..... any help would be appreciated.

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12-September-02, 03:10 PM		#2 (permalink)
DuckWarrior Retired Admin In Charge of Death and Destruction to All those Who Oppose My World known as PimpRig	You really should do a search in the forums, I have posted this multiple times. Add up only the components below that your system has to determine wattage: AGP video card - 35-50W PCI video card - 35W AMD Athlon 900MHz-1.3GHz - 50W-65W AMD Athlon XP 1.47MHz-1.73GHz - 60-75W AMD Duron 1.0MHz-1.3GHz - 50W Intel Pentium III 800MHz-1.4GHz - 40W-55W Intel Pentium 4 1.4GHz-2.0GHz - 65W-85W Intel Pentium 4 Northwood 1.6GHz-2.0GHz - 60W-75W Intel Pentium 4 Northwood 2.2GHz-2.53GHz - 80W-90W Intel Celeron 1.0GHz-1.1GHz - 35W Intel Celeron 1.2GHz-1.8GHz - 45W-65W ATX Motherboard - 40W-65W 128MB RAM - 10W 256MB RAM - 20W 24X or higher IDE CD-RW Drive - 35W 32X or higher IDE CD-ROM Drive - 25W 10x or higher IDE DVD-ROM Drive - 20W SCSI CD-RW Drive - 17W SCSI CD-ROM Drive - 12W 5,400RPM IDE Hard Drive - 13W 7,200RPM IDE Hard Drive - 18W 7,200RPM SCSI Hard Drive - 24W 10,000RPM SCSI Hard Drive - 30W 15,000RPM SCSI Hard Drive - 45W Floppy Drive - 5W Network Card - 4W Modem - 5W Sound Card - 5W SCSI Controller Card - 20W Firewire/USB 2.0 Controller Card - 40W Case Fan - 3W CPU Fan - 3W The wattage numbers above are estimates and may be rounded to the nearest 5 watts. The given wattage may only reach the specified level during power-up or during peak usage. Always purchase a power supply with a bit more wattage than you calculate you'll need, to make room for future upgrades. PS Dont forget anything Also 256MB is not enough for XP! 512 minimum. XP runs 170MB at idle. Running 4 windows and Winamp3 I use 251MB. If you Game at all you can hit over 400MB easy.

12-September-02, 03:23 PM		#3 (permalink)
lcpiper H2-Hoe	Duck, I think Sno2dude was just caught a little off guard. I don't think he imagined that this had been covered in such excellent detail previously. Maybe it should go in the mod-link DB or get a sticky somewhere ?

02-March-03, 01:46 AM		#4 (permalink)
Teranfirbt Apex Master Tech Apprentice	I dont have any probs running XP with 256 ram... most of my games only lose 2-3 FPS vs Win98

03-March-03, 11:10 PM		#5 (permalink)
Red02 Freck-hoe-d	were did that come from?!?!?!?!?! anything above 300w for a standard case is good. if your doin moddin with CC and Fans i would suggest at least 400-450w

03-March-03, 11:41 PM		#6 (permalink)
Tom10167 Apex Tech Maniac	Basically, spend the extra 25 bucks, get a 500w, and never ever have to worry about it again.