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post #251 of 4644
Thread Starter 
Quote:
Originally Posted by gabe2500 View Post
anyone running a q6600 at above 3.5ghz? I can run 400x9 with cpu volt at 1.5, ddr2 at 2.2v, and pci-e,nbridge, and sbridge at +0.4 with 1:1 timings.
Is yours a B3 stepping or G0 stepping? That'll make a big difference in how far you can go.

Also, those volts seem awfully (I mean really awfully) high. You shouldn't have to increase the volts on the NB/SB more than +.1v for a 400mhz FSB, and PCI-E voltage shouldn't be touched. What are your temps like?
post #252 of 4644
Quote:
Originally Posted by SgtSpike View Post
Done. BTW, my list isn't "stable" overclocks per say, it's just "if you can get CPU-Z verification" overclocks.
Well in that case, here's 3.7 GHz @ 1.45v in BIOS. 34C Idle (Yikes!)

I'll be trying for more in a bit.

CPU-Z Validation
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post #253 of 4644
Scratch the last one. Here's 3.8 GHz!

losttsol - Q6600 G0 @ 3.8ghz, 423FSB, 1.45vcore CPU-Z Validation
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post #254 of 4644
yes, I have a G0 slacr. Hey lostoll what are your other bios settings? fsb/mch/ddr2/pci-e?
post #255 of 4644
yeah my volts at 3.6 are really high, but that is the only way I have been able to fun full 100% load in prime95 without crashing. I didn't know that adjusting pci-e is not recommended. I just want to hit a stable 3.6 with lower temps. I think I'll start by putting pci-e at normal.
post #256 of 4644
Thread Starter 
Quote:
Originally Posted by losttsol View Post
Scratch the last one. Here's 3.8 GHz!

losttsol - Q6600 G0 @ 3.8ghz, 423FSB, 1.45vcore CPU-Z Validation
That's a freakin nice OC man, great job!
Quote:
Originally Posted by gabe2500 View Post
yeah my volts at 3.6 are really high, but that is the only way I have been able to fun full 100% load in prime95 without crashing. I didn't know that adjusting pci-e is not recommended. I just want to hit a stable 3.6 with lower temps. I think I'll start by putting pci-e at normal.
I'm assuming you just gave up adjusting the voltages individually, and said screw it, I'm pumping these up all the way? Because there's no way you need +.4v on the MCH/FSB.

Here's what I would do (assuming you're 100% stable right now as it is). Start with the CPU voltage. Reduce that ONE STEP AT A TIME, boot into Windows, and stress test for 1 minute. Keep doing that until you get errors. Then, bump it back up one notch, boot into windows, and stress test for an hour. If you still get errors, bump it up one more notch until you find one that doesn't give you errors.

Do the same thing with all your other voltages. Do the FSB voltage next, reducing it by one notch and booting into windows and doing a short stress test, etc. Then MCH. Then DDR2v. You need to get those volts down, because you're gonna kill your mobo if you don't. I wouldn't be running more than +.2v on the stock mobo heatsinks for MCH/FSB.

Good luck, let me know results after you've done this.
post #257 of 4644
Quote:
Originally Posted by SgtSpike View Post
Try other settings for your PCI freq. Try 101, 102, 105, 110. Don't go over 110 though, I think 120 is where you start corrupting data on drives, but play it safe. Just see if that helps at all.

Also, have you completely reset the BIOS? Do a "Restore Default Settings", restart, then try another OC.

Hope this helps.
I shut down the computer, restarted, and did the following for each PCI-E freq from 98-102:

Loaded the Optimized Defaults
Set Performance Enhance: Standard
Set CPU Host Clock Control: Enabled
set CPU Host Freq: 334
Set PCI Express Frequency: 98-102

The computer automatically shut down and rebooted after each PCI-E frequency I tried. It failed to allow me to even get into the BIOS. I loaded the Optimized Defaults each time.

No go. The system works fine if I just Load the Optimized Defaults, save, and let it boot. I'm not sure that trying different PCI-E frequencies is really going to help.

Anyone else have any ideas?
post #258 of 4644
Thanks Spike. I've been trying for 3.9 GHz, but I can't get into windows with it. I've had to clear CMOS a few times cuz it locks up. I've tried 9 and 8 multipliers as well as taking the voltage up to 1.5v. Maybe my RAM can't handle it. Any ideas?

Quote:
Originally Posted by gabe2500 View Post
yes, I have a G0 slacr. Hey lostoll what are your other bios settings? fsb/mch/ddr2/pci-e?
423FSB x 9 / DDR2 1:1 @ 846 / 5-6-6-16 / PCI-E @ 100

...Haven't changed any other voltages other than CPU. Might have a good chip on my hands. I can' t keep it at 3.8 without better cooling though. I think I'll stick with 3.4 GHz at a lower voltage which gives me 57C under load. I can live with that.
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post #259 of 4644
Thank you very much SgtSpike . I will try it tomorrow and see how it goes.

Keep up the good work
post #260 of 4644
Is there are reason why in cpu-z my core speed will jump around from 3300 down to 2400 and then back up. And i notice my voltage will go from 1.05 to 1.32. Its changing those two things constantly. is there a reason why?
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