So I bought a new XFX Radeon HD 6950 2 gig card from Newegg about a month ago, and whenever I play BF3 and the temperature exceeds 65-70, my computer shuts down and "Power Saver Mode" pops up on my monitor. I have only experienced this problem in BF3, and it even happens on Low settings. Room temp is 72-74F, I have a ground-based room fan pointed at the computer, and a nearby window is letting in the winter breeze. The GPU idles at 42-47C, stays around 50-60C throughout the game, but when the explosions go off and it increases to just under 70C my whole computer just shuts down. This is all with GPU fans at 95%. Anybody have any idea on what could be going on here?
My ideas, that I still need to do:
1) Take the computer apart and try cleaning again
2) Possibly get an aftermarket cooler, but I have no idea what to do - http://www.newegg.com/Product/Product.aspx?Item=N82E168...
3) Go into BIOS and change the auto-shutdown temp to something slightly higher.
Could it be the PSU? I plan to get a 1050W between now and Christmas, to leave room for CrossFire.
Also, run GPUZ and check it's sensors after a bit of gaming. It's possible the VRM or even VRAM are getting really really hot. Your core temps are fine, but if the VRM or VRAM are going over 120C you'll have a problem.
So, it went from 62C to Sun. This was in ArmA 2 Operation Arrowhead on completely max settings, 3D resolution at 125%. Was playing for at least 5 minutes before it happened. Same exact crash as in BF3. If it were a memory thing, it would just crash the game right? Shouldn't be a memory thing though. Now I'm really thinking PSU.
Hey I'm glad I found this form even tho its old i have 2 of these cards cross fired and i have this shutdown problem too i thought it was because 1 of my case fans wasnt working. i replaced it and the problem seemed to go away. but my friend told me to run prime 95 to see if the crash would still happened. and of course it did. I was wondering if anyone would have any insite on the issue. 2 6950 cross fired. 1100 PSU. 3.4 cpu i7 liquid cooling. solid state main hard drive with 3t for storage.