250W PSU sufficient for this system?

Indy500 · 3 Dec 2009 at 17:21

A computer with the following spec needs a replacement PSU:

Asrock P4i65G socket 478 motherboard
Pentium 4 2.8 Northwood (HT)
1x256MB DDR400 and 1x512MB DDR400 RAM
Nvidia Geforce FX5700 Ultra (128MB DDR3)
320GB Seagate SATA2
IBM 8x DVD-ROM

I have a spare 250W unit already here, which I think would be sufficient, but if I've overlooked anything the outputs are:

5V - 22A
12V - 16A
3.3V - 18A
-12V - 1A
5VSB - 2A

Anyone disagree?

All sensible input appreciated

Alex74 · 3 Dec 2009 at 17:37

hmm...i'd be careful tbh, especially if it's an aging PSU (branded?). I wouldnt risk my 3.4 Prescott with it, but then a Northwood should take less power..

What would you be using it for?

Indy500 · 3 Dec 2009 at 17:40

Alex74 said:
hmm...i'd be careful tbh, especially if it's an aging PSU (branded?).

Sparkle.

Alex74 said:
I wouldnt risk my 3.4 Prescott with it, but then a Northwood should take less power..

What would you be using it for?

AFAIK the PC's rarely used for anything intensive, could probably do fine on the integrated graphics if needs be.

Alex74 · 3 Dec 2009 at 17:51

Probably have enough juice to run it without the discrete gfx card (should be ~20-50 watt saving). Couldnt say for sure otherwise..

jbloggs · 3 Dec 2009 at 18:04

I have that motherboard with a 2.2 Celeron, 2 SATA HDDs, 1GB ram, 2 case fans, DVD-rom and it draws around 70w at idle, althought I have a 350w PSU, but I would think a 250w would be fine for what you have...

Indy500 · 3 Dec 2009 at 18:05

Alex74 said:
Probably have enough juice to run it without the discrete gfx card (should be ~20-50 watt saving). Couldnt say for sure otherwise..

Outerextreme's PSU calculator suggests the entire system requires 172W at 90% system utilisation, or 139W without the graphics card.