How are my temps?

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Joined
13 May 2009
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42
Howdy ho.
I've just got a Coolermaster V8 from OCUK, and installed it today. My temperatures have been a little erratic so I thought I'd ask some advice from the forums.

Here are my general OC-related specs:

Asus P6T
i7 920- 2.6ghz
6gb DDR3 Ram (1,600mhz)

Pre-overclocking, my idle temp was a rather astounding 15c with the V8 cooler. I then overclocked to 4ghz using these settings:

BLCK:200
DRAM Freq- 1600
CPU V-1.35
CPU PLL V-1.96
QPI/DRAM V-1.35
DRAM V- 1.66

I've ran a few stress tests and had mixed results.

Here are the tools I've used:

CPU-Z
SpeedFan
RealTemp
IntelBurnTest
STALKER: Call of Pripyat maxed out at 1680x1050
ARMA 2 maxed out at 1680x1050

According to SpeedFan, I get an idle temp of around 25-35c. I then ran IntelBurnTest with 5 passes at maximum setting (i.e, a ridiculously full load). After doing this my highest core temperature reached a rather staggering 90c at the height of the test, with one core briefly hitting 100c for a brief moment, and my highest CPU temperature was around 80 to 85c. However, it still passed the test and was deemed stable.

I tested it with some intensive games. I ran the benchmarks in ARMA 2 several times, and made a level featuring huge numbers of jets and infantry to stress the CPU. I also played Call of Pripyat for a good while. On both of these occasions the CPU never went above around 55c according to the graph on SpeedFan, although RealTemp reported a brief max core temp of around 74 at one point.

How are these temperatures? And if possible, is there any way to improve my temperatures by choosing more efficient BIOS settings?

I'll give Crysis: Warhead a whirl and say how it goes.

It should also be noted that CPU-Z seems to keep changing the Core Speed and Multiplier readings depending on whether I'm idle or in a game. Is this normal?
 
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I havn't tried mine at 1.35v so don't know what my temps would be like at that, but I would try knocking it down a bit.

Mine is stable in Prime95 Blend at 4.0ghz with 1.27v CPU V and tops out at 71c.

Trying knocking it down a few clicks and see how stable it is, your temps should go down to reasonable figures at around 1.3 I'm guessing.

I'll do a short Prime95 at 1.35v and report the temps with my Zalman CNPS9900.
 
84 82 83 76 @ 1.36v after 5mins Prime95 Blend, so I don't think your temps are far off to be honest? Just 1.35v probably is going to give you high temps, personally I wouldn't want to go past 1.3v, but thats up to you.

Try at 1.3v, using 191 x 21, and see how you get on :)
 
For some reason I can't set the multiplier to 21 in the BIOS, so I've kept it at 20x200, but reduced the voltage to 1.3v.

So far the core temps have reached a maximum of around 80c, and the CPU temp has never gone over 65c. There's definately some improvement.

It should also be noted that one of my intake fans isn't running at the moment, which might effect my temperatures.

Any other suggestions? Should I try just reducing my voltage more?
 
I've tried it at 1.25 and 1.2 so far. I seem to get a drop of about 1 degree per 0.01 volts. 1.2 was too low, and I got a BSOD under a stress test. However, 1.25 is perfect. Crysis Warhead maxed at 1440x900 never exceeds 45c, and the core temps at about 60c.

Seems like a pretty damn good cooler so far. Could go a bit higher if it weren't for the fact 4ghz is overkill anyway :P

Once I get my other intake fan on I imagine I'll have some really good temps.
 
you have v.good temps mate.
My settings are:
4 Ghz, 1.27 Vcore, 1.22 VTT, QPI 1.3v - I'm getting 74/73/73/71 under LinX - under water ;)
Unfortunately my chip has crap IHS and need lapping.
 
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