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CPU temps and fan PWM's


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#1 sausage

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Posted 28 May 2010 - 05:35 PM

so, my CPU is running much hotter than I feel is comfortable, and its making the office unbearably hot.

HWMonitor reports all 4 cores at 64 degrees C. Now I would blame this on my lack of good cooling but my GPU is only running at 52 C.

Now, I'm thinking, I've never seen a CPU run hotter than a GPU until I look at the fan power.

FANPWM0 99%
FANPWM1 99%
FANPWM2 50%

50%, what? I have no idea why it's only running at 50%. I dont even know if this is the processor fan or not, but I'm assuming it is because in my experiences the CPU never runs hotter than the GPU.

So now I'm still confused, we take a look at RPM's.

FANIN0 3970RPM

Only one fan now. Now i'm even more confused, rgh.

Can anyone help me explain this/fix this problem?

EDIT: alright, wtf, I unplugged the internal fan completely, and it still says there are 3 fans, 1 at 50% power and one fan at 4390 RPM

Edited by sausage, 28 May 2010 - 05:50 PM.


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#2 MrBruce1959

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Posted 28 May 2010 - 06:54 PM

I am familiar with HWMonitor.

The read-outs you are getting are coming from your motherboards controller chip and the sensors that are manufactured into the motherboard that are supplying the information.

In most cases CPU and the CPU core temp are your Processors readings.

GPU is the graphics card if it supports a temperature out-put reading.

Some motherboards out-put a temperature reading for the North-Bridge chip and the Power supply's internal temperature as well.

The fans are CPU, case fan, GPU and the PSU fan if the sensor is wired to the motherboard.


The percentages you are seeing are telling you how much air-flow each is pushing. The one with 50% is most likely the case fan, while the other two are CPU or possibly the PSU fan.

If your grapics card has a cooling fan, then one could be that fan, if it has no fan, then it is your PSU fan.

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#3 sausage

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Posted 28 May 2010 - 07:32 PM

the case fan was what I unplugged, and nothing changed.

#4 MrBruce1959

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Posted 28 May 2010 - 10:01 PM

Here is what I suggest you do.

First buy a tube of thermal paste, Antec brand formula 5 silver thermal compound is the best out there!

Remove your processor heat sink, clean off any old thermal paste from both the processor and the heat sink and remove any rubber pads found on the heat sink bottom if there are any.

Make sure the fan and fins on the heat sink are clean and not clogged with dust.

Return the heat sink back on the processor securely.

Try adding at least another fan to the case for exhaust and see if your temperatures go down.

Post back your results.

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#5 sausage

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Posted 28 May 2010 - 10:34 PM

may I ask where one would obtain said thermal paste?




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