Just today, after exiting a game, my Windows 7 32bit failed, and bluescreened. Upon restart, the overclock was no longer active (reset itself to factory 2.5 Ghz, 333x7.5). This has happened to me before, with the old processor, so I didn't think much of it. I reloaded bios, opened the saved OC profile, saved and exited.
Now, however, the CPU won't overclock properly, as if the Bios settings aren't being applied. When the computer restarts, the startup screen (and CPU-Z, when Windows loads), says the CPU is still running 2.5Ghz at 333x7.5. HOWEVER, when I get into Bios, all the proper OC settings are still in place; 420x7.5, memory settings, voltages, everything is as it should be.
As an experiment, I loaded failsafes, then downclocked the multiplier so it was running at 2.3Ghz, 333x7. That worked fine. So it appears as if I can no longer move the clock speed past factory default. After toggling the clock speed control option to and from DISABLED in the bios, it still won't accept any changes when the system restarts, even though the Bios is telling me it should be at 3.15ghz. I also shorted the reset pins on the motherboard, and reloaded the profile from there. Still no change.
I'm totally out of ideas here, help please!
I can provide exact Bios settings if necessary.
Edited by Perturabo, 28 December 2010 - 02:16 PM.