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Intel hd 4000 crash during oc

post #1 of 3
Thread Starter 
experimenting with oc an i5 3570k on asrock z68 board.

I was prime 95 testing a modest 4GHz oc, but during prime the intel hd 4000 graphics driver crashed. It restarted by itself quickly and none of the workers failed.

Is that indicative of a non-stable overclock?

In bios I set multi to 40, spread spectrum disabled, all c states disabled, fixed voltage 1.15v, speedstep disabled.
post #2 of 3
Thread Starter 
Just noticed the bios has a separate voltage setting for the IGPU.
post #3 of 3
Thread Starter 
Do i have to increase the voltage of the igpu so that it wont crash? Seems i can't just overclock the cpu and ignore the igpu.
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