Hey first post.
I built this computer back this time last year and have trouble with it freezing solid during Borderlands and Crysis. I eventually had to RMA a set of RAM since it was failing under memtest. The new RAM tested great. All ram passes memtest for a week straight. The computer is prime95 stable for a week straight as well. The system is also not overclocked at all.
The system still crashes hard or the ATI driver stops responding during games. I decided to see if there was a prime95 like tool for GPUs and came across FurMark. When running those the system makes a cricket like churp noise which from what I read may be coil buzz which is rare on ATI cards. (Yeah, I searched first) So I ignored it. Well I decided to run both prime95 and FurMark at the same time. After a few minutes the buzzing got super fast and rhythmic and the lights in the room started to strobe. I stopped FurMark and it stopped after a second or two. Told my friend and he wanted to know if it was repeatable so I tried it again. It did it again. I then recorded it doing it and it's on Youtube now. I did not capture the lights flashing because the phone's camera isn't good enough to capture it and I don't want to damage anything with this. The computer is plugged into a APC Net8n power strip. The speakers are off so the noise isn't coming out the speakers.
What the deal? Is it the power supply or the ATI Card? What should I RMA first?
Windows 7 64bit. Fresh install last night
Newest Video drives released today.
Antec P183 Computer Case
CORSAIR HX Series CMPSU-850HX 850W Power Supply
Noctua NH-D14 CPU Cooler
XFX HD-587A-ZND9 Radeon HD 5870 (Cypress XT) 1GB XXX Edition
EVGA E758-A1 3-Way SLI (x16/x16/x8) LGA 1366 Intel X58 ATX Intel Motherboard
Intel Core i7-920 Bloomfield 2.66GHz LGA 1366 130W Quad-Core Processor
OCZ Gold 12GB (6 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 OCZ3G1600LV6GK (Two kits)
4 x 75gb Raptors
2x Dell 2005 20 inch monitors.