A quick Q6600 voltages question

WingZero30

WingZero30

WingZero30

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Hi guys

My Q6600 G0 (1.2625v VID) is overclocked to 3.4Ghz as I made a thread about it couple of weeks ago. Here are the values:

Bios Vcore = 1.4125v
Idle Voltage = 1.360v
Load voltage = 1.296v -1.312v

Now I would like to ask if these voltages are sustainable for long term use. I already turned C1E and EIST back on along with mobo power saving feature program.


Many thanks :)
 
Purgatory said:
Should be fine at them voltages, what are the temps like and what motherboard are you using ?

VID Voltage Range for Q6600 G0 SLARC 0.8500V-1.5V

http://ark.intel.com/Product.aspx?id=29765
Click to expand...


Mobo is Gigabyte GA-EP45-UD3LR


Prime95 small FFTs stress test


q660034ghzloadbiosvcore.png



Intel Burn Test

q660034ghzintelburntest.png
 
I would be tempted to re-apply the paste due to having 9 deg difference between the cores. I had the same issue, after cleaning the paste off and re aplying I now only have 2-3 deg difference. With having such a low vid why not go higher? 3.6 is a must :)
 
Agree with the guy above, if you're only using that voltage for 3.4, I'm sure you could manage 3.6 no problems :)

As for the temperature difference, my old Q6600 was similar, but not quite as extreme. I commonly had a 5-6 degree difference. Reseating it may help, but it also may be a waste of time :cool:
 
WingZero30 - Those values are almost identical to my Q6600 G0 @ 3.4Ghz. I was surprised the voltage drop from Bios was so much given P45s have a good rep for OCing.

Your idle temps are a bit lower than mine by a few degrees but my Fenrir is pulling heat from the back of my 470. I have a 120mm fan on the way to stick in the side of Scout over the 470, so hopefully that will improve the airflow up to the CPU.

Despite re-seating the Fenrir twice since installing it, I still have a 6 degree difference between the coolest and hottest cores :S. Strangely the difference under full load is only about 4 degrees but I guess that is due to the heat spreading around more.
 
Thanks for the comments guys:).

I am using horizontal line method as recommended for Core 2 Quads and the thermal compound is MX-4 which I have applied twice but get the same temp difference of about 8-9C between core0,core1 and core2,core3. My cooler is IFX-14 with 2 Akasa viper fans in push-pull config.

As the Q6600 consists of two separate E6600s on the same die, I think core0 & core1 consist of one E6600 which runs hotter than the other chip consisting of core2 & core3. It would have been wonderful to get all the cores displaying more or less same temps but NM.

Now as for [email protected] (400MHzx9), apparantly either mobo or cpu doesn't seem to like running at that speed. This is what I was aiming for aswell in the end and even with 1.5-1.55v in bios, my PC still crashed when running Prime95 or IBT and temps went above 80C:eek::(.

I tested 400x8 ([email protected]) with 20 passes of IBT just to see if my mobo could handle FSB of 400MHz and it did successfully and bios vcore was 1.45v. But when it came to 400x9 with 1.5-1.55v as mentioned above it just couldn't hack it. However I did notice that northbridge heatsinks gets very hot when [email protected]. So I still don't know if I am limited by mobo or is the cpu itself though I have kept ram at stock speed of DDR2 800MHz or underclocked it:(.

Would a blob/rice grain method be better than horizontal line method?
 
dcsarge said:
WingZero30 - Those values are almost identical to my Q6600 G0 @ 3.4Ghz. I was surprised the voltage drop from Bios was so much given P45s have a good rep for OCing.
Click to expand...

Yes apparently the downside of the mobo is that I experience a collective vdrop/vdroop of 0.1V atleast which is significant unless I enable LLC which somewhat reduces voltage differences:(. I think it is also possibly due to my mobo being a 4 phase whereas Asus P5Q Deluxe is 8 or 16 phase, so it has much efficient voltage regulator so more stable for overclocking Q6600s.
 
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