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***The Official Q6600 Overclocking Thread ***

My attempts to prime at 3.6GHz are failing miserably. After hitting 3.2 I upped the FSB to 450 but that also clocked my memory and I couldn't set it any lower. All cores failed within a minute. I then tried changing the multiplier and used a lower FSB but that took 1.325v before it would even boot. I'm wary of putting too many volts through it and don't know if there's any other settings I should be touching.

3.2 was easy but from my very limited experience so far I gather it's going to take a lot more skill and patience to get that extra 400MHz out of it.
 
Im not having much luck with mine, swapped out my P5K vanilla for P5K Premium the other night and cannot get any stabilty over 3.6Ghz. Prime never fails the PC keeps restarting. Maybe I got a crappy chip/maybe power problems though my PSU should be up for it.
 
pastymuncher said:
Ok, i have hit a snag with mine. Had it running at 3.2ghz (8x400) with a Vcore of 1.35v no problems. This morning i upped the voltage to 1.4v and went for 3.6Ghz (9x400). Surprisingly it booted straight into windows (XP). I started up core temp and TAT to check temps which were 22/20/22/24. Started up prime to test for stability and the pc locked up. Ok, not a problem, try more volts. Restarted the pc and went into the bios and set the voltage to 1.475v which is what others seem to be achieving 3.6ghz on. Save and reboot only to get stuck in an endless loop of restarts. Switched off and cleared the cmos (god i hate the positioning of the jumper on this board). Dropped to 3.4ghz (8x378) with the same voltage. Same story, endless restarts. Reset cmos again (Grrrrrrrrrr). Set to 3.2ghz (8x400) as i know this works but with the same 1.475v. Same again. Puzzled now???? :confused: I then dropped the voltage a notch at a time and it would'nt boot again until i got down to 1.375v. Something weird going on here as it appears that this cpu does'nt like voltage. At the moment i am running prime at 3.2ghz (8x400) with 1.35v Vcore to find a stable base to work from. Currently been running for 3hrs 25mins and temps are 38/36/38/39 which seems damn good to me. I will run it for 8 hours to make sure.

In the meantime does anybody have any ideas please? At the moment my 4300 is the higher clocker. The Q6600 G0 is a L726B053 if that's any help.
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Just an update. I have now got past whatever the problem was by having a fiddle in the bios. I have upped the MCH and FSB overvoltages on the mobo both to +0.20v and i am now running at 3.4ghz (378x9) with 1.4v vcore. Prime stable for just over 6 hours now and temps are 31/32/33/31 (it's bloody freezing up here. If this turns out to be stable, and it looks like it is, i shall be going for 3.6ghz (9x400) tomorrow. I will be happy then and any more is a bonus. I really did'nt want to buy a new mobo to get this thing clocked. Not bad for a P965 chipset.
 
Whats the max FSB people can get with there q6600 G0's ? Even with a x6 multi I cant post past 455FSB :o

Just wondering whether its common with these or my Premium mobo ain't to 'premium'
 
Hoo-bloody-ray. Stable for at least 8 hours of Prime at 3.4ghz. Unfortunately this appears to be my lot now as if i try 400x9 for 3.6ghz it has the same problems as before (constant loop of restarts) no matter what voltage i use. Maybe i do need a new mobo after all. :(
 
MadMossy said:
Question for w3bbo, what cooling are you using for your Q6600, what ram are ya using also m8 ?
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Custom watercooled loops. For the CPU I have a d-tek fusion with a PA 120.3 and a DDC ultra. My ram is also watercooled on this loop. The NB is watercooled with the Blitz Fusion block(stock) with a PA120.2 and DDC ultra. The GPU is also on this loop.

The 4.23 PI run was made with some 5300 ballistix but I have sold these on now and bought some 9200 OCZ flex so I expect a better time when I get around to it;).
 
pastymuncher said:
Hoo-bloody-ray. Stable for at least 8 hours of Prime at 3.4ghz. Unfortunately this appears to be my lot now as if i try 400x9 for 3.6ghz it has the same problems as before (constant loop of restarts) no matter what voltage i use. Maybe i do need a new mobo after all. :(
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:mad::mad::mad: Back down to 3.2ghz again as it falls over when gaming. Yet it ran prime for 8 hours. :confused:

Looks like a new mobo then.
 
Cob said:
Ah right.

So you run two copies of Orthos? You're best running Prime95 as it can test all 4 cores.
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Sorry , i should have been clearer. I used prime small fft's as that's what is needed for the quad core database thread. I usually use Orthos but have'nt for the quad. What i have never heard of is the rounding thingy.

Begining to wish i stuck with my 3.4ghz E4300 now. :(
 
Will there really be much difference between 3.4 and 3.6?

Hell, I would think 3.2 would be good, even if some people are getting higher... be happy with what you got - it is a darn quad core after all :)

Will probably get one for christmas, and will be happy with 3.0 for 24-7 running.
 
ffallic said:
Will there really be much difference between 3.4 and 3.6?

Hell, I would think 3.2 would be good, even if some people are getting higher... be happy with what you got - it is a darn quad core after all :)

Will probably get one for christmas, and will be happy with 3.0 for 24-7 running.
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I am back down to 3.2 not 3.4ghz now as i stated above. Have you seen what others are getting with watercooling? Everybody was saying it's stupid to go dual core now and that most Quads are hitting around 3.6ghz. So i go and get one and it just about hit's 3.2ghz. Big deal. My 4300 gave me a 1.6ghz overclock!!
 
If you don't need the stock cooler then go for the OEM version. Ok the OEM only has a 12 month warranty, but if the chip is working after 12 months it will still be working after 36 months.
 
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