This a good temperature, for a i7 940

[Blitz1776]

So I recently invested in a I7 940 (employee accomadation) and I decided to buy a mugen 2 fan considering I read up and it seemed like a great heatsink for the price.

What I wanted to ask was if these temperatures looked good since I was considering overclocking it.

It seems to run at around 60 Celsius idle however the fan is a pwm fan and it only rates at around 105-110 rpm, I believe for gaming I"ve never seen it to much past 65 Celsius. I am planning on picking up another fan to run a push pull system.

Only question is if it in your opinion is still to high, do you think it was a bad mount (had a little trouble but I think I managed to get it secured and it's kinda of a pain to remount ;/)

Thank you for your time and appreciate all your help

 

[RussianSensation]

That's definitely too high, especially if C1 / EIST states are enabled. At idle, your processor should run at a lower multiplier, thus lowering its frequency. As a result, idle temperatures should be 35-40*C at most (with your cooler).

For example, my Core i7 860 @ 3.9ghz idles at 1674 mhz (9x 186 QPI) resulting in 28-31*C idle temperatures. Mugen 2 is very comparable to a Megahalems.

Your fan speed doesn't make sense: http://www.heatsinkfactory.com/scythe-mugen-2-rev--b-cpu-cooler---scmg-2100.html
The fan is rated at 1300 rpm, not 110. You may have Smart Fan option enabled in the BIOS. I would try disabling it and see how that changes the speed of the fan.

If this doesn't fix your problem, it could be that the fan is faulty. Try swapping for another fan (say a case fan). If this doesn't fix the problem, then try remounting the cooler. Make sure to apply good quality thermal paste like Arctic Silver 2, Arctic Cooling MX2/3, Tuniq TX2/3, etc.

 

[Blitz1776]

Appreciate the quick response RussianSensation and I'll feed you what I know.

Of real temp my multiplier seems to stay float at 2973-3108 mhz or a 22-23 multiplier of 135.13 and my fans are pwm so they are suppose to just chilll till it deems it to get to high hence why they are only rotating at 105-110 instead of the 1300-1500 it's suppose to be capable of.

But yet again wasn't really sure if the temps were still rather high even for fans that never really kick on at non threatening temps.

 

[RussianSensation]

If at idle your CPU speed in CPU-Z doesn't drop, this means you don't have power saving technologies enabled. But even then the temperatures seem a little high. Could be poor airflow in the case or high ambient room temperatures? It is most likely the poor fan speed though. 100 rpms seems unreal! Set it to manual and see what happens with the fan rpms and the temperatures.

 

[Blitz1776]

so I shut off the temperature controls on the fan and at idle it's currently at 40-45 Celsius (more toward the 45 generally), which you said is still to high, guess that means I'll need to remount the heatsink unless you have any other thoughts ;/

 

[nitromullet]

so I shut off the temperature controls on the fan and at idle it's currently at 40-45 Celsius (more toward the 45 generally), which you said is still to high, guess that means I'll need to remount the heatsink unless you have any other thoughts ;/

If you're idling in the 40s and hitting the 60s under load on air, your temps are fine. You can try a re-mount if you want, but there is no need to.

You also can't really compare i7 LGA 1156 to LGA 1366. They are different chips. LGA 1366 is bigger and runs hotter.

 

[Blitz1776]

Alright I'll go with what you say on it, and probably turn back on the fan controls since it was never close to overheating at those temps, just wanted to make sure I didn't do anything wrong on my end. Thanks for the help and advice.

 

[aigomorla]

your fan is on way too low to the point where its almost running on passive.

Get a better fan, and you should notice a much better improvement.

Your fan settings in bios is probably set to pwm, and that pwm fan is not doing a very good job.

 

[Blitz1776]

I looked more into it and as said before yes it is set to PWM, however apparently my board (DX58SO) essentially only comes essentially with CPU PWM fan on or disabled, Case PWM fans on or disabled, and speed of fans if PWM is enabled as slow or off.

Is there really any harm at idling at those temps if the computer ramps up when necessary.

 

[Supersonic64]

As long as it's staying under 72c or so under load I wouldn't worry. Remember idle temps are notoriously inaccurate.