5970 (drivers) crashing after a few hours?

[humanage]

I have a dual 5970 mining rig, and I use CGminer. I use 800mhz core and 267mhz memory. I don't know what on earth could be the problem... My GPU core temps don't go over 80c and VRMs don't go past 110c.


When I witness the crashing, I notice that the ATI driver goes first, and then CGminer crashes.

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[-ck]

I have a dual 5970 mining rig, and I use CGminer. I use 800mhz core and 267mhz memory. I don't know what on earth could be the problem... My GPU core temps don't go over 80c and VRMs don't go past 110c.


When I witness the crashing, I notice that the ATI driver goes first, and then CGminer crashes.

Try it at stock clocks to rule that out entirely.

[ssateneth]

Not all 5970 are created equal. One of my 5970 cores is only good to 725 MHz at 1 volt. One of my other 5970 cores is good to 810 mhz at 1 volt.  One of your 5970 cores could simply be low quality and not be capable at running at such high clocks, even at the stock volts of 1.05. If a 5970 core is crashing, reduce clock by 5 mhz, and repeat until stable.

[d3m0n1q_733rz]

What kind of PSU do you have?  You could be running into voltage droops.