OK here,
I bought an 0503 CBBHD Winnie and put it in my DFI NF4 Ultra-D only to be dissapointed by a low overclock (as I expected). Seems it would run memtest86 up 2650mhz, but no way would Windows load. I checked my voltage in MBM and Sandra and they were not following what I had set. I rebooted and changed the basic CPU VID value to 1.55v and I still had 1.42 volts (probably 1.45 which is default).
Frustrated by now, I decided to try lower the voltage to see if that would track. I tried 1.35v and it read fine in Windows. Hmmm..... so I set the voltage to 1.40v and the CPU VID Special Control to 123%. This read fine in Windows and i was able to hit 2610mhz stable in Prime95.
To sum up: I had a craptacular <2400mhz top overclock using the standard voltage adjustment in BIOS. By lower the voltage to 1.4v and using the overide at 123% I achieved 2610 P95 stable. Nothing ground breaking, but it turned a dissapointing CPU into the best one I have bought so far.
I have a few conspiracy theories floating around in my head here...........
Let us know if this helps you.
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