i have had it stable at 3ghz on an x38 but i suspect the cpu not motherboard because the cpu was stable at 2.66 ghz with fsb of 333 x8 but unstable with fsb 333 x 9
when this pc was first built the stock intel cooler couldnt get it below 60c on stock settings.
if you think i may have killed it
just unlucky and cant oc this cpu
need more skills in ocing
What stepping is the CPU, use CPU-Z then report back. I know the GO stepping is supposed to be better. maybe that's your problem.
Or, your just unlucky and got a bad OCer.
its G0 stepping,
pc gamer: i installed the zalman 9500 before attempting to oc i did have a stock cooler on for about 2 months and it was overheating drastically (on an x38 board)
I have had it at 3ghz on an x38 and the 750i but never had it stable higher recently i cannot get it to reach that speed again.
iluvgillgill: you think my motherboard is dropping the coreV, on me?
yes blackknight! if you search around the forum and see other nvidia mobo OC thread. on a normal Intel mono the vdrop/vdroop will be lik 0.02-4V where as Nvidia mobo on the other hand goes down to 0.08-0.1V and believe me that is ALOT!
i love my 8800gt's $220AUD their fantastic, just keen to push the cpu but i need to give up on it i think, it lets me know its unstable as i try to log into vista, just after password it freezes. so i cant use any of my monitors thier.
(warning vista issue what it has done twice now is after a reboot, screwed windows vista so hard the orginal install disk doesnt work(and very nicely instructs me to insert the boot disk and repair install) yes my windows install disk fails to boot after vista crashes
requires disconnect from mains bios reset and then windows recovery from the install disk.
update, reinstalled windows after it broke again, i wasnt trying to oc and it failed.
i think now that there may be something about my old vista install that was causing it as linux ran perfect with a small oc to 2.8 but windows crashed during login. just reinstalling games/apps now will try oc soon
issues: first was that my windows vista install was corrupt and a low level format and reinstall fixed it.
second issue uncovered is that the core voltage drops by at least .05 when cpu is under load about .04 when not under load.
tested psu by removing one of my 8800gt the vcore drops remaind excatly the same, this eliminates the psu as a problem.
good load and run using linux means the cpu wasnt damaged,
ran a ram test no issues
currently running at 9x333 corev set 1.3875, actual 1.336 prime95 test all good after 30mins. highest temp under 54c
thanks for the help guys and good call on the mb issue "iluvgillgill"