Quote Originally Posted by WizardofOz View Post
Well I am not familiar with Gigabyte Boards, but you have a nice processor there, as some else with that Batch# say it has a VID of 1.2000v, so you should get to 3.0GHz with no problems.

It appears you have more than enough Voltage there at 1.375v (you can drop to 1.25v, even stock voltage of 1.20v is possible to reach 3.0GHz), what about increasing the NB Voltage (mine is at 1.60 and I have reach 3.8GHz P95 stable), did you check memory voltage (mine is at 2.1v for 3.6GHz see signature).

FSB should be 334 (to reach 3.0GHz) which means at 1/1 your Memory should be capable of running at 668MHz. (ie Min requirement DDR2 667/PC2 5300). So can your board do FSB 333 (I would think most Boards would be able to do that).

If you think you are constrained by your board, what upgrading the Bios to a different version? Maybe Gigabyte has a fix, if it is a board problem.

What is your Power Supply like?
PSU is an Antec True Power II 550W - I have thought that was an issue - especially seeing as it likes to just shut itself off suddenly while ocing, which I've never encountered before - crashes, BSODs, error msgs - yes. A hard switch-off? Never.

I'll give your suggestions a go and see what happens - only thing is I'm not sure what the default voltages for the NB / SB / VCC / FSB are - as the Gigabyte BIOS only shows +0.05v changes from the default (without actually telling you what that is)

BIOS is latest F2 version but I have a feeling the 650i boards don't oc quad-cores that well (as Devious) has mentioned. Reading up Shamino's review of the same board a while back, he was only able to hit 330Mhz stable with a quad-core before he had to volt mod the board. Dang. Shoulda done my homework better.

Devious> only problem with getting a P35 board is I've got 8800GT SLI and running it on a 1080p 47", I'll be needing that SLI...