Just so you know

[myPCrocks]

Just thought I would share with everybody what i stumbled across tonight.

I wanted to pull all my movies from one drive to my main machine in my sig, so I plugged in a WD 300 gig and upon windows booting it said the Video Card didn't have enough power.

I was shocked with the Power Supply I had that adding one more HDD would cause that.

For everybody wondering what size power supply to go with, go big and leave yourself some headroom. I thought I would have headroom but, WRONG. These modern machines suck the juice. And I would never buy any generic PS.

[saphalline]

Ooh, yeah. Looking at all the parts, I can see why. How many amps you got for +12V on that PSU?

[myPCrocks]

Technical specifications
175x150x86 mm
23 dBA @ 60% load
100~120Vac / 200~240Vac 10/6a
200~240Vac only**
520W: +3.3V(28A),
+5V(40A), +12V(33A)
600W: +3.3V(28A),
+5V(46A), +12V1(20A), +12V2(18A)
Overvoltage/Short-Circuit protection
Independent adjustable 3.3V/+5V/+12V rails.

[saphalline]

Oh, I see. It can output 520W total, but all your rails add up to more than that (688.4W). That PSU has enough room to breathe on each individual rail, but not all of them at once. 520W max output. So yeah, I'd say it's trying to provide too much of one rail.

If the rails are independently adjustable, try tweaking them a bit.