I'm O/Cing my E6400 2.13Ghz ( currently running at 3.4Ghz ) and had what might be a stupid question .

Last night I couldnt get it to run 3d01 at anything higher than 3.32, now today its running it at 3.4 ..........does giving it a "rest" so to speak really make that kind of a difference or was it possibly just staying to warm for too long ( loaded temps are 46c ) . The temps didnt seem high to me at all but ......

Also , I'm O/Cing my 7800 GT's *SLI'd* @ 465/1221 and they seem to be doing fine , but are there any tricks to tweaking settings to squeeze a few more points out of the 3d benches other than O/C

Set-up
E6400 2.13 @ 3.4 - 1.45v - 8x - rated 1700fsb - bus speed 425mhz
BFG 680i SLi mobo
2x BFG 7800 GT OC
2x 1gb OCZ DDR2 800Mhz - 1.9v - 5,5,5,15 2t
WD SATA 3.0gb/s 80gb
DVD Rom
1000w PSU
** All running on an HSPC Test Bench**

Well, I don't think it was the temp that was causing it as i pretty much run at 44c and have no problems. Are you blue screening during the bench? If you were, maybe try bumping up your voltages a bit. I'm still a n00b at overclocking, might also want to try different memory timings if your memory can handle it.

I hope I'm not leading you in the wrong direction, but thats my two cents.

thanks , just tryed bumping it to 1.45 and ran 3d03 at 3350 , but when i went to run 3d05 it locked up ....... I hit reset and now it wont go past 3260

DAMN YOU BFG !!!!!!! LET ME PLAY !!!!

EDIT - OK i bumped the V to 1.5 and now its running 32m *super pi ** at 3.4

So how high can i go on V with good air cooling ( avarage 46c under load using Everest )

If you want to run day to day, I wouldn't go over 1.5v. going higher then that for a bench shouldn't be a problem. Maybe someone with a little more knowledge will chime in soon.

In theory, as long as the chip is running in a safe temperature zone you shouldn't have any problems. But on air I wouldn't go much higher than 1.5v and then I would make it brief. But that E6400 was cheap, we can always buy another if you smoke it. HeHeHe :-)

Yea I think for the QX6800 we didn't push 1.525ish. And even then we were playing with air. Under LN-2 We may have got to 1.65ish, even then I can't member its been enarly a year.

I would keep it uner 1.5v and only above for short bench runs. Air cooling is interestingly a big difference in heat watts, vs watercooling. Once a article on here was noted about watercooling in IBM mainframes and how the air backup had a heat load of nearly 1200wats, vs the 800 or so that the watercooling had to handle.

You don't have watercooling? And what cooler are you running?

I usually give it a break after a couple hours of benching, or when I run into a wall. a quick ten or a long hour, either normally help a little, just getting the chip back to room temps.