Having trouble getting E6600 stable

Mansize_tissue

Mansize_tissue

Mansize_tissue

Soldato
Joined
20 Mar 2007
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Norwich
I could do with some advice with getting my overclock stable. Here are the important system specs:
E6600
ASUS P5K Deluxe
2GB of Crucial Ballistix PC2-5300
Thermalright Ultra-120 eXtreme

At the moment, i'm 9-hours Orthos Blend stable at 377x9 (3.393Ghz), vCore is set at 1.45v. My memory is running at a 1:1 ratio with the CPU's FSB frequency (377Mhz), with 5-5-5-18 timings at 2.2v. Core temperature hits about 59 degrees Celsius on load.

As soon as i up the FSB frequency to 385Mhz, i get rounding errors in Orthos Blend and, sometimes, it causes the computer to reboot. Even when the vCore is set to 1.5v, i get errors within about half an hour of running Orthos. My RAM shouldn't be the problem, since i've set the voltage quite high--i actually used 2.25v when trying the 385Mhz FSB frequency--and the timings are really loose. My motherboard also isn't the limiting factor because it can reach much higher FSB frequencies.

In the BIOS i've enabled the voltage damper and disabled C1E, SpeedStep, CPU and PCI Spread Spectrum.

I'm really at a loss; any advice on how to get stable at 385Mhz FSB?- with a 9x multiplier, of course. I understand my CPU just might not be able reach these frequencies, but i was really hoping to hit 3.6Ghz with this setup.

Thanks in advance.
 
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you can try using an 8 multi and start at 400 mem speed with all your other settings the same, and up the mem speed till you start getting errors in Orthos.

well worth trying.
 
My C2D 6600 needs about 1.5v to 1.55v for a stable 3.6ghz

You may need to get a better cpu cooler so you can up your vcore voltage a bit more...
 
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I've got pretty much the best air-cooler there is, so there isn't much room for improvement on this front unless i decide to use watercooling or something. Although, my temps should probably be lower than they are now, i might have to lap my processor.

Troop, that's a good idea but, if i can't get stable at 3.6Ghz with a 9x multiplier, i doubt i'd be able to do it at 8x. I've had it at 425x8 previously, but i never ran Orthos long enough to see if it was as stable as 377x9. I could try running Orthos over night, but i can't see it being more stable than it would be with a 9x multiplier.

I would increase the vCore some more, which i think is what's preventing me from getting stable, but at 1.5v it's hitting 63 degrees Celsius in Orthos. Much more and i'm in dangerous waters.

I really thought with my motherboard-CPU combination, reaching 3.6Ghz would be relatively easy. I'd love to be able to get stable at 450x8 but, if i'm not even stable at 377(let alone 400)x9, i can't see it happening.

Thank you very much for your input. Do you think i should increase my vCore even more, since this seems like the only thing that will get me stable? Unless anyone has another suggestion... :)
 
Try using TAT if it works with your motherboard and see what your temps are like...

As i find that Orthos don't really stress the CPU that much....

TAT gives me much higher temps & power consumption then Orthos does...
 
Mansize_tissue said:
It does make the CPU a lot hotter but is it any better highlighting instability?
Click to expand...
TAT is just a better program then Orthos for seeing what the real temps are that your CPU can reach up to under full load...
 
You most likely find your temps would be to high for 3.6ghz with only air cooling...


These are my temps with both cores underload with watercooling..

DSC00168.jpg
 
At 3.4Ghz, i'm at 64 degrees Celsius under load. I guess i should just stick to 3.4, then. I can probably lower my voltage a lot from 1.45v, and it's never going to get this hot when gaming anyway. I was just hoping for an alternative solution, for reaching 3.6Ghz, without raising the vCore any more since it's already running hot. Thank you for your help.
 
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