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Q6600 G0 VID 1.325

PawelPawlak

PawelPawlak

PawelPawlak

Associate
Joined
5 Jun 2008
Posts
1
Hello!

My MoBo is Abit IP35. RAM - 4GB Patriot 800Mhz CL4. Cooling - TR Ultra 120 Extreme.
I can`t get past 3.2 Ghz mark on my Q6600 (G0, VID 1.325).
Currently working at 3.2 Ghz (1.5 VCore)- rock stable (Prime95 and BOINC on all cores - OK).
Temps range from 35C-40C Idle to ~50C at 4 x 100% CPUs usage (at ~22C ambient room temp).
When I set 3.6 Ghz (9x400) at 1.6 VCore there is BSOD after Windows XP bootup screen. 3.4 Ghz is "no go" either.
I have`nt changed VTT, GTL, NB or SB Voltage yet, and more than 1.6 VCrore seems a bit too risky for my CPU.
What do You recommend to change in BIOS to get 3.6 Ghz mark (and not to fry my CPU or MoBo)?
 
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Although your RAM is rated CL4, I would try loosening the memory timings with 2.1v. See what happens. I can't get mine past 3.3 GHz as things get a bit too toatsy.. Hence I have a watercooling loop ready to go in.

Welcome to the forums btw. :)
 
You might have the same ABIT/Q6600 issue as me.

I have a decent watercooled setup so temps aren't the issue.

Can run at 3.2Ghz with not too much voltage with the 9x multi. As soon as I go above that I get BSOD and if I remeber correctly at 9 x 400 it wouldn't even boot into bios.

I spent days altering VTT, GTL, NB or SB Voltage and vcore to no avail so gave up and resigned myself to the fact that although I had a 1.25v VID cpu, it was pants at overclocking.

Decided therefore to just get the best out of my 3.2Ghz setting by dropping the multi and having a higher FSB.

Dropped memory to 5-5-5-15 timings so it wouldn't be a factor and set it to 8 x 400 which worked fine.

Thought I would just see if it would go any higher but had little hope except the slim one that I might have fsb hole between 356 and 400 but was shocked to find that 8 x 425 was stable with just a little more volts through the cpu.

ANyway, I can get 8 x 450 stable as well = 3.6Ghz and even 8 x 475 = 3.8Ghz but that has a bit too much voltage going through the cpu for 24/7 use.

I had to up the nb voltages up a couple of notches, VTT up one or two notches and maybe SB up one since the FSB is more than 400.

The surprising thing is that my 8 x 450 (3.6Ghz) prime95 8 hours table setup, that if I just change my multi back to 9 x 400 and nothing else, it doesn't even boot into windows. :confused:

Not too bothered as 8 x 450 is a faster system than 9 x 400 but I wasted days trying to get the 9x multi stable.

I have almost got 8 x 500 stable but I am having to put 1.65v through the cpu and I am only trying that to do one run of 3dmark06 to post my results. ;)

Anyway, I would try the 8 x multi and see if you can get higher. Nobody has even given me an answer as to why my 9x multi doesn't work as in theory 8 x 450 is stressing my cpu and mobo way more than 9 x 357.
 
I have a Q6600 Kentsfield (VID 1.325), IP35 Pro, ACF7 Pro, Antec Sonata III and it seems to need one or two MCH bumps at 3.3GHz and another at 3.4GHz. I'm currently running 24/7 at 3.5GHz (390x9), VCore 1.475V, MCH 1.37V, 2 x 2GB Crucial Ballistix PC2-6400 2.2V 4-4-4-12, 1:1 ratio (yes underclocked RAM :S).

I haven't changed any other settings related to VTT, GTL or SB.

Also, hello all! I'm new to the forums but been a lurker for years hehe.
 
Have pretty much the same setup - got it last week. Same vid of 1.325
It seems to need loads of vcore to get above 3.2. I've had the vcore up over 1.6 and the best I could get was 3.3.
Tried dropping the multi to 8 and managed 3.3 but that was it - could get into windows but not stable.
Going to try again later when I get home to see if I can get any more out of it. I'm was even considering ordering another chip to see if it does any more, but it you have the same problems then maybe the current batch aren't so good.
 
DrSteve said:
Have pretty much the same setup - got it last week. Same vid of 1.325
It seems to need loads of vcore to get above 3.2. I've had the vcore up over 1.6 and the best I could get was 3.3.
Tried dropping the multi to 8 and managed 3.3 but that was it - could get into windows but not stable.
Going to try again later when I get home to see if I can get any more out of it. I'm was even considering ordering another chip to see if it does any more, but it you have the same problems then maybe the current batch aren't so good.
Click to expand...

Have you tried leaving the multiplier on 9, RAM timings on auto or 5-5-5-15(or even 18), CPU:DRAM ratio as 1:1, but changing the RAM voltage to the recommended/rated? One or two V bumps on the NB/MCH over 3.2GHz may be needed. Play around with RAM timings after it's stable.

Also, my overclocking efforts were limited on this board by running the uGuru software under Vista x64 (BSoDs relating to uGuru.sys). I had trouble removing it so nuked Windows installation, cleared CMOS to get rid of temperature/voltage warnings thresholds in the BIOS, reinstalled Vista 64, installed all drivers apart from uGuru software and disabled the 'unknown device' (uguru driver) in device manager.


*EDIT: My system doesn't seem to like 8x multiplier on many settings.
 
I have the 1.325v VID Q660 on a ASUS P5N-D Sli 750i Board... now I have SLi cards (used to be able to run 1556FSB and get 3.5ghz but Sli now BSID's in Windows), I can only run 3.45ghz (1533FSB)... infact I can run the following:

8x400 = 3200ghz (1600FSB) 100% Stable
9x383 = 3450ghz (1533FSB) 100% Stable

My HT Volts = 1.48, NB = 1.48, SB = 1.52 with 1.535v in BIOS going through the chip (actual is 1.504V in CPUZ dropping to 1.488 with Droop under load)...

I run this 24/.7 folding with the RAM at 5-4-4-12 with 2.1v going through it and it's junky dorey... did a 99 loop Crysis benchmark at 1920x1200 last night and it was fine...

Cheers Pug
 
A lot of these new Q6600's seem to be having the same issue. I took a look at one for a fellow member last week and it was needing high voltage just to boot Windows at 3.5ghz. Luckily he has a PA120.2 and can afford to throw voltage at it.
 
I have the same VID and I can only get 380x9 MAX I've tried running uncomfortable voltages through it, knocking up everything pretty much, northbridge, southbridge, cpu pll, fsb termination voltage, blah and blah and blah, losing ram timings... cannot for the life of me get 3.6ghz stable :(

The only thing I havent tried is running a lower multi, but my ram is rated for 800mhz... If I was to try 450x8 would I be risking killing my ram? Or can I use a different divider or something to keep my ram at 800mhz despite the higher fsb?
 
Shash said:
The only thing I havent tried is running a lower multi, but my ram is rated for 800mhz... If I was to try 450x8 would I be risking killing my ram? Or can I use a different divider or something to keep my ram at 800mhz despite the higher fsb?
Click to expand...

the only thing that will kill your ram is excessive voltage. if you try and push too far, then the machine won't boot and should hopefully then reboot gracefully and allow you back into the bios to change your settings - my board does if i push it too far. i also have pc6400 and i can't even get it stable at 425... :( not sure if it's a board or ram limitation though.... it's certainly worth a go though. and the ram dividers only work the other way i'm afraid. you can run the ram faster than your fsb but not the other way around....

as for these 1.325vid q6600s.... i also have one. does 3.2 on 1.35v which i'm very happy with. i tried priming at 3.6ghz and it was looking good for a few hours but that was with 1.55v. but then it crashed.... and i don't want to try any more volts. i don't think an extra .2v (or more that will be required) is worth it for 400mhz. and since i only have a slowish gpu, i don't need more cpu speed at the moment. 3.2ghz is more than enough. :)
 
I have mine stable at 3.4ghz 24/7, cpu pll 1.6 and setting fsb termination to 1.4v got this stable, dunno why as afaik pll is only more important at faster fsb speeds, but its worth a try marc? You could probably push for 3.4ghz on 1.45v ish, it scales badly from there, fsb of 400 x9 isnt even close to stable for me at the same voltage...
 
Shash said:
You could probably push for 3.4ghz on 1.45v ish, it scales badly from there, fsb of 400 x9 isnt even close to stable for me at the same voltage...
Click to expand...

funnily enough i tried that earlier. got about an hour out of prime before i got a BSOD. currently priming @ 3.42ghz (380x9) with 1.4625v. coming upto 2 hours now (edit: left overnight. 10 hours and still going ..... :p)

i'm still not sure it's worth all the extra voltage over the 1.35v i can get by with for 3.2ghz (16 hours prime stable. :D)
 
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marc2003 said:
funnily enough i tried that earlier. got about an hour out of prime before i got a BSOD. currently priming @ 3.42ghz (380x9) with 1.4625v. coming upto 2 hours now (edit: left overnight. 10 hours and still going ..... :p)

i'm still not sure it's worth all the extra voltage over the 1.35v i can get by with for 3.2ghz (16 hours prime stable. :D)
Click to expand...

Yup, my Q6600 1.325v VID needs 1.4975V vCore for 3.5GHz but temps only peak at 66C over a 24hr period which isn't too bad considering. 3.6GHz is a no go for me at any voltage or multiplier.
 
C2Q said:
Yup, my Q6600 1.325v VID needs 1.4975V vCore for 3.5GHz but temps only peak at 66C over a 24hr period which isn't too bad considering. 3.6GHz is a no go for me at any voltage or multiplier.
Click to expand...


Are you running your fans at full speed (or using anything like Q-fan to slow it down). I peak at 70 degrees running Prime95 at 3.2Ghz and I'm running a lower voltage too. What heatsink do you use?
 
hundred-and-one said:
Are you running your fans at full speed (or using anything like Q-fan to slow it down). I peak at 70 degrees running Prime95 at 3.2Ghz and I'm running a lower voltage too. What heatsink do you use?
Click to expand...

Arctic Cooling Freezer 7 Pro (fan on 80% - 100% - BIOS setting), Antec Sonata III case, IP35 pro mobo and 3 x 120mm Xilence case fans. CPU-ID shows 1.8v so a nice bit of vdroop :).
 
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Odd, have been using the exact same cooler. But running higher temps. Just upgraded to an OCZ Vendetta. Reduced the temps by nothing though. However, the fan does run a lot slower (2000rpm vs. 1500rpm). Think it must be the Q-fan thing that just keeps the temp stable by adjusting the fan speed.
 
marc2003 said:
currently priming @ 3.42ghz (380x9) with 1.4625v. coming upto 2 hours now (edit: left overnight. 10 hours and still going ..... )

i'm still not sure it's worth all the extra voltage over the 1.35v i can get by with for 3.2ghz (16 hours prime stable. :D)
Click to expand...

i've decided it is worth it. a 1ghz overclock just sounds better than 800mhz. :D

i'm getting max load temps of 70c with this el cheapo cooler :o

http://www.overclockers.co.uk/showproduct.php?prodid=HS-041-AK

only thing i could find locally that was quad capable.
 
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