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Asrock a75m itx - igpu unstable unless set to auto

post #1 of 2
Thread Starter 
A8 3870k on an Asrock a75m itx board with latest bios and drivers.

If I set "Multiplier/voltage change" from auto to manual and run a gpu intense program like 3d mark or Furmark the computer will reset with no video signal. Happens no matter the manual settings of multiplier(30x) Cpu(1.4125v) Nb(654mhz) and Nb/gfx(1.15v).

I'm limited to only adjusting the reference and gfx clock as of right now. Any ideas of what the problem is?
post #2 of 2
Thread Starter 
It seems the problem was just extremely high defaults and horrible itx vrms. I ended up with 100 bclk x30 with 1.2v and 450mhz nb 0.9v.
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