I've seen this topic before but I didn't pay it much attention.
I was running and OCing my E2160 fine between 3.0 and 3.2 over the last few days. I did a 9 hour small FFT Prime run yesterday. After that, I had a few random blue screens after attempting to download some new software. http://www.getpaint.net/
Now when I go into Bios and change stuff around the only thing that won't stay changed is the FSB. It always reverts back to 200 in Windows.
So far I have unplugged the power, pulled the battery and cleared the CMOS. I thought that would do it but I was wrong.
I know how to turn speedstep off and all that is done because I can load all my other OC settings including voltages and RAM values.