Return To Overclocking My Q6600 on the Abit IP35 Pro

Bony Maloney

Bony Maloney

Bony Maloney

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My Q6600 has been running @ 3.4Ghz 9 x 378 since I've had it ( 18 months now). I've just put a new modular PSU in my case and the air flow seems a lot better. My core temps with IBT running are 65c max. My VID is showing as 1.2750 Core temp, and volts of 1.350 with Cpu-z. I have 2 x 2gig sticks of Geil ULL 800 DDR2 running: 18,5,5,[email protected] 1:1. (command rate T2). I remember trying to get the memory to run at 400, but would fail to boot and I never took it any further. No north bridge volt tweaks just on the memory and cpu. Ideally I would like to run @ 9 x 400. Any tips please for this. I have the Tuniq tower cooler (I've never run the hover craft higher than 50% fan speed:D). Would there be any real world gains running at 9 x 400 v 9 x 378?
Thanks :)
 
you will almost definatly need to bump the north bridge voltage up got mine at 1.33v i believe and i have also bumped the cpu vdd up a notch or two. I run at a 425Mhz FSB on my IP35 Pro. Before you touch any of that though tweak your setting's to run the ram only at 400Mhz and stress test it to see if it can handle it, if you run the FSB and RAM both at 400Mhz and it fails stress tests you won't know whats failing the RAM or the motherboard.
 
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Thanks DIABLO. I've just tweaked my settings to 334 x 9, with a ram divider of 1:1.2 = 400.8Mhz (2T, 18,5,5,5. 2.1V) I have just used IBT for the 1st time and it passed the maximum stress test. What next please bud?
 
Intel Burn Test is more of a CPU only test, personally i would use blend test in prime95 for a few hours (perferably 5-6) so you can be 100% sure your ram is rock solid. Once i your happy that the ram is solid i would put the ram back to 1:1 divider then start bumping the FSB up in increments i was happy with (all the time keeping the cpu and ram at speeds you know are rock solid) and then testing with prime95 blend if it fails quickly you need to bump the north bridge volts up a couple of notches and then rince and repeat.
 
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Prime ran OK overnight (12 hours) on blend test with memory set @ 4000Mhz. Now I'll have a play with the FSB speed.

Update Prime errors after a few seconds; 8 x 400 in bios (although Cpu-z is showing me @ 9 x 400??) MCH set @ 1.33v anything else I need to tweak, and what's the max MCH voltage for the north bridge?

Thanks
 
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Tried 3.5: 9 x 389 (had to up the vcore to 1.460, actual 1.39v in Cpu-z & uGuru). Passed IBT, failed Prime on 1 core after 6 hours. Temps 65,65,60,60. PWM 63.
I haven't altered any other setting. Not sure if I should have upped MCH or VTT before upping the vcore further than my stable 3.4 @ 1.4050 (actual 1.34v). Can I get this to 3.6 with 1:1 fsb of 400. The memory will do it, just not sure about the temps, voltage required. Advice please folks :)
 
But watch your nb and mosefet temps. I found that was the killer on my board at getting to high overclocks.

Due to the poor fitting of the heatsinks using concrete as thermal paste, I found that my mosefets were hitting 110C and my nb would keep going to hot for stability as well.

Carrying out the bolt mod with decent thermal paste solved all my problems.

I did still have to resort to a fan on the nb to get to 3.9Ghz though but shouldn't be needed for 3.6Ghz.
 
Simple answer - as little as possible!

Helpful answer - keep upping it one nothc until stable or alternatively start highish and work down one notch until you find the lowest one which is stable.
 
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