Originally Posted by dennyb
@sizzle--I just raised the V-core to 1.250 and the QPI/vtt to 1.25 as well. Everything else normal. It seems to be helping -not throwing errors yet.
This is different than the 775 testing. In 775 I would use V-core and vtt to settle the sm fft clock---then raise Mch Core to settle the blend portion. Then I was stable all around.
I got 10+ hrs stable on sm fft @1.225 v-core,everything else "normal". For blend I am needing to raise V-core to 1.250v and since I already had my vtt set @ 1.250 from a moment earlier(failed test) I just left it there.
15 minutes in and running well--highest temps=68C. Am i ok?
I here you on being different. It's even a little different than 1366 which I could pretty well set my vcore with small and then just adjust qpi for blend. With my 760 anyway the memory controller seems to have a little bigger stake in the vcore than my 930. I have read before that for these i5's the "uncore" voltage actually has very little to do with the memory controller and everything to do with baseclock and I've found that to be somewhat true. Though when I was really pushing my RAM for SuperPi runs it was still all in the VTT... Anyway.. Somewhere along the line I've decided to start my testing with IBT and I'll run atleast 20 passes at MAX before running Prime so I'm usually already pretty close before I get to Prime Blend now.
I suggest you push for at least 12 hours of Blend. Temps ok and usually you'll see your max temp within 20 minutes. I say usually because I have had them creep up on me right before a BSOD several hours in. 68C running Prime Blend at 4.0 with a Dark Knight is great in my book.
Originally Posted by dVeLoPe
Ok so I am very confused here.. what causes a system to SHUT DOWN no warnings.. BSOD's... nothing. I had it running for hours a 500 pass IBT @ Standard it passed it.....
Then I click on "OK" after it telling me the system is stable changed the run time from 500 up to 1000 tests and hit "START" and what do you kno.. SHUT DOWN.... *** MAN!?
Wasn't even sure what to say here, 500 runs of IBT standard just seems absurd to me. Pick up 20-50 runs on Max, then 12 hours or more of Prime Blend and call it a day. Do set your thread numbers in IBT instead of leaving it on auto. Might not matter without hypertheading but I just don't trust auto.
Crashing when going from idle to load after already being stable at load sounds like not enough idle voltage to me. Betting you have LLC enabled ? 2 choices there. Either up your voltage to a higher than what you need load voltage so that your idle voltage is high enough to handle the transitions. OR disable LLC and adjust the voltage so that you get the load voltage that you need (1.28v?)Edited by ~sizzzle~ - 12/14/10 at 12:47pm