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CPU Overclock causes boot failure since Windows 10 upgrade
After upgrading from 7 to 10 a few days ago I went back into my BIOS settings today to put my clock speeds back up, and as soon as I did this the PC failed to boot.
I have an i7 2600K on a Gigabyte Z68X-UD4-B3 motherboard and for years have had a moderate overclock somewhere between 3.8 and 4.2Ghz with no problems. The upgrade to Windows 10 seems to have caused some conflict where ANY change to the stock frequency causes a boot failure.
The PC enters a boot loop, it stops just after "Loading Operating System...." and then hangs on "Boot from CD-Rom:" the restarts again. Eventually on the post screen (or when entering seting using del) I get a message about an unstable overclock from the BIOS. From past experience when this happens my BIOS loads optimized defaults and resets the frequencies to stock, allowing the PC to boot normally.
There are quite a few other threads about from other users who have had OC problems following the Windows 10 upgrade, but most of them are from last year on much earlier builds than mine, and NONE so far using the same hardware as I am using.
What can I do to fix this? I have no idea where to start
Thanks all!