I thought I'd introduce the topic with a rather dramatic statement, I'm not actually positive that's the verdict, just my initial thought.
I installed everything and I'm getting a wierd problem, after a bit of tinkering I narrowed it down to the PSU and the graphics card. What led me to finally assume it was the graphics card was the fact that the problem is mirrored by someone else who found out it was their graphics card and the fact that the sytem works without the graphics card (or at least power gets to most of the system).
I have the standard 520 Watt psu that came with a raidmax. With the 8800 GTS in, I turn on the comp the psu fan turns on for a split second, thats it. Then all power to the mobo is lost. And I can hear a sound comming from the PSU. Kinda like the sound from the flash building up in a camera. But fading out for about 5 seconds, this is if I have the PCI-E power plugged in; if I don't have the power plugged in, then the motherboard's speaker makes a distinctly alerting noise, the system powers up (except for the graphics card).
The problem is stated by a guy in the post in the link below who quite promptly got the shop to replace his card as faulty after testing it.
i have seen before where if there is a short in the video card it will have this effect, but then again a short in the power supply or motherboard will have the same effect. Best way to help test is to try the video card in another system. If this is an XFX video card please start a support ticket at ww.xfxforce.com and PM me the ticket number.
Well, as far as I know, when the card is idle the draw isn't very big, and the 'short' happens virtually instantly, so to the best of my understanding it shouldn't be be drawing enough power to stop it from even starting with that PSU, if I need it I'll buy a new PSU, but first I'd like the thing to start.