Hey Guys,
I have an Aurora R3 with a 6990 and have been having issues for a while now. The PC powers up but gives nothing on screen, doesn't even seem to send anything to the monitor since it normally powers on automatically. I switched out alot of components and narrowed it down to the PSU or GPU. When using my friends GTX760 everything worked fine immediately. After I took out the GTX and put my 6990 in again it didn't work, same issue as before. Then I switched to little bios "overclock" switch on the 6990 to default position and it worked, the PC powered on as it always used to and all looked fine. The very next time I tried to boot it up again, same issue as before, even in with the bios switch in default mode. I switched it one more time from 1 to 2 and back and it worked again! Although this time the screeen feed dropped out after 5 minutes and would not come on again, again nothing happened on reboot. I have not been able to get a signal since.
Seeing as the hd6990 is an extremely hungry card, could it be that the PSU is just worn out and cannot supply the GPU with ebough power to properly work? (the fans spin up though, although that probably requires very little power) This would explain why the GTX760 worked fine. Because my 6990 worked twice after fiddling with the 760 in my system I was hoping that the card itself isn't fried.
If it's the PSU that's done, can you guys recommend one that would fit a watercooled 2600k / HD6990 system?
Thanks in advace you guys