Unstable opteron165

[dagz85]

Put together my rig today. It worked good till I wanted to OC it. Whenever I OC it just a lil it becomes very unstable and my windows start to freeze about 1 hour into say anything CPU heavy (game for example). Does anyone know good timings for my ram?

setup:

mobo- DFI lanparty
cpu- opteron 165
memory- G.Skill Value 2GB (2x1GB)
video- evga 7800gt 256 pci-e
hd- 2X raptor@ 10k rpms
heatsink- Thermalright SI-120
case- Thermaltake XASER, Armor Series VA8000BWS Black Aluminum/Steel ATX Full Tower Computer Case - Retail

Running stock cpu voltage atm, thanks!
edit: also I notice on the stock settings, a lot of my games are studdering and are slow.

 

[dagz85]

Figured it out I think. Am able to overclock without lockups. The power supply fan went out. This was the first day I put it in also. It originally had 2 fans, the back one was not on. That explains it I guess ;\

edit: Guess that isnt the problem, sigh. Whenever I OC and go into this game my computer locks up and a studder sound comes out of my speakers. This isnt a heat problem, my cpu runs at 38c under high load.

 

[compso]

I'm gonna guess it's a power issue if it's not heat. Check your PSU rails and respond with the results.

 

[dagz85]

Already changed my power supply, its not that. Also it isnt the heat because it happens when nothing was overclocked as well. cpu runs at 29c idle and my motherboard runs cool also. Right now i'm guessing its the sound card because I heard there are issues with creative cards mixed with nf4 mobos. Going to try the onboard sound.