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Problem with a8-3870k OC

Question asked by plsbx on Jul 13, 2015

Hello!
I have some problems with my APU.
I tried overclock iGPU and I found some problems.
BIOS cannot set clock what I want. I mean 740MHz working as 720MHz in load, but 760MHz working as 760MHz.
Second problem is NB Clock. In bios it is 800MHz but in windows I see not stable 630MHz-1GHz. Gyazo - 9088b13b65c9d510c0e3e109f111e367.png


Any ideas why its work like that?
My mobo's gigabyte ga-a75m-ud2h

Ram 2x2GB 1333MHz @ 1600MHz

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