Q6600(G0)+ASUS P5Q-E....Cant get FSB over 385 in any way.

[laserkatten]

Hey guys.

Just got at Q6600(G0), the asus p5q-e and 2*1GB corsair dominator DDR2 8500CL5.

Things are going pretty good and i have gotten the rig to do 3,46Ghz(9*385) at 1,43V perfectly prime stable with the temps never going above 60C. Having it do 3,46 24/7 is fine i guess but im annoyed at not being able to get over 385FSB no matter what i do. Even if i set the multi to 6,7 or 8 and set the mems to lowest possible divider it wont even boot into windows at 387 and up. So even if i set it to 387*6 with low mem Mhz its a no go. What is the reason behind this? This is my first intel processor ever(OC:ed a few AMD:s) so im pretty new to this. Ive looked around the boards but nothing really helped me. Could it be that my processor just cant handle a FSB above 385? (Have a 600w seasoninc so that shouldnt be a prob.)

Oh yeah. Raising the NB volt or the CPU volt seems to not help in any way.

[Almost Tactf]

Try setting your RAM to a 1:1 ration and that will remove it from the equation, you also may need a small bump in your north bridge voltage

[BabyGorilla]

We the FAK did my post go????

Anyway, here goes again.

1. Its not the processor.
2. Possible FSB hole? Try 400x8 or something like that.
3. NB voltage may need a bump up also..

Here is a great guide for u: http://forums.extremeoverclocking.co...d.php?t=261409

EDIT: Looks like someone beat me to it...though Im not sure what 1:1 ratio will do. The lower the memory the more it is out of equation...or so I thought.

[laserkatten]

Ive tried 400*8. Tried pretty much every combination. I havent had the NB volt over 1,3 because i dont know how much is safe.

[BabyGorilla]

Try 1.4. Thats safe. But in reality, you shouldnt need that much voltage for such a mediocre overclock...

[laserkatten]

Thnx for the help guys but i think ive figured out what the culprit was. Raising CPU PLL and FSB termination voltage allowed for much higher FSB:s...This is my first Intel so i just left them at auto. I read on another board that OC:ing q6600:s requires adjusted FSB termination v and CPU GTL values. Seems to be more stable now. Got random crashes even at 3,2 ghzz with them at auto.

[Witchdoctor]

Try installing the 703 BIOS if haven't it has mem compatibility fix if that is part of the problem I hit 3.6 no problem but have hit the wall
Q6600 go at 3.6gig Bios x9 400FSB 1.375V
4 gigs Dominator 1066 mem Bios 2.1V locked at 1066
Strap the FSB at 333
1.28 NBV
Stronger setting for Mem
8800 GTX at 593/1389/936
Audigy 2
P5Q-Pro
What voltages are you running for the CPUPLL and the FSB termination?

[JoeyC]

I just loaded the 1003 bios on mine and have had much more luck. Running prime95 for over an hour now at 9x400 @1.48 loaded with load line calibration OFF, 1.6 in bios. I'm on water though and pushed the voltage a bit further than some would to eliminate that as a problem. I'm gonna set it down to 1.5 with load line on next and try that. Gonna play with all the other setting that I have NO IDEA what they do now. Glad to see little tidbits of info on several different posts on here. I know i'm not much help, but when I get a stable 3.6 setup with the lowest volts possible I'll post my settings. Someone who knows something about these bios settings give us some input on this epic q6600+p5q-e setup please! lol