Note Sure How To Fix Instability.

[Icaraeus]

My computer's GPU I thought had been successfully overclocked but shortly after starting up Crysis 2 the game froze for a few seconds and then it said that it wasn't responding and I had to close it down.

I had tested stability with Unigine Valley benchmarking, 3DMark and various other games but when I tested Crysis 2 it froze a few seconds into the start of the first mission. There was no BSOD or Red Screens (which I'm guessing would imply VRAM or voltage instability) so I'm not sure how to get it stable. I overclocked my 270X to:

Core Clock - 1070mhz default; 1190mhz overclocked (+120mhz)
VRAM Clock - 1400mhz default; 1510mhz overclocked (+110mhz)
Power limit + 20%
Voltage at 1.295V (+70mV over default)
Max temperatures is 70 degrees at 60% fan speed.

Also I've noticed that in anything other than Unigine Valley, my voltage fluctuates on load which causes the Core and Memory clock to go down and up every 5-10 seconds.

 

[chris987]

your gpu temps are fine however the vrm temps are defenately a lot higher since overvolted! does gpu z show vrm temps? an unlocked voltage sapphire gpu would have such sensors! VDCC may flactuate a bit however, higher flactuation may indicate a thermal issue. i would decrease clocks a bit along side with voltage and see if it stabilizes!

 

[Icaraeus]

I can't seem to find any VRM temps for the voltage, I do my tweaking with a combination of Sapphire Tri XX, MSI Afterburner, HWMonitor, GPU-Z and AMD Catalyst Suite and I tweak the voltage using the Sapphire Utility. I'm going to experiment tomorrow and see what happens.

 

[chris987]

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