Official MSI P7N Diamond (780i) Discussion/Review/Overclock/Guide/BIOS Thread

[BKA]

I've never heard of an M1 stepping. I believe C1 is correct. Do you have your chip overclocked or do you have speed step (Intel EIST) enabled? At stock settings, cpu-z should be reporting vCore below your VID. Note that Speedstep / EIST can cause an incorrect VID reading (reporting a VID that's too low.) If you suspect this is the case, turn off Speedstep and read the VID again. Unfortunately, I don't have a comparative basis at the moment as I haven't read up on Q9300 chips.

No, I disable Speedstep/EIST from jump. MSI does report a M1 stepping on the supported CPU's for this board, although both C1 and M1 are listed as "Under Testing". Only the C0 is listed as supported by BIOS 1.0.

Another thing I noticed, although the BIOS has it listed as 7.5 for the ratio, the highest that can be adjusted is 7.

EDIT: Intel only has the M1 listed in their Core2 Quad processor list. Hmm.