Currently running on Bios ver. 1204 (the latest one). Here's my issue: I had all the 'speedstep' crap turned off (c1e, c3/c6)...but forgot EIST. The system ran fine, 12 hours of problem free prime95 until I stopped it manually. I go back into the bios and notice EIST is still one, turn it off...and I BSOD now almost on every windows boot. Furthermore, originally all I would have to do is turn off EIST/C1E and the cpu would not throttle...however now (even before the bios update), it will still throttle unless I turn off c3/c6. I heard that OCing is more stable with speed step on, but have also heard that his is a prob. only with ASUS boards. I'd like to run the cpu at a constant speed without fluctuating multiplier/voltages. Any help would be great.