racing cpu fan

[buddman]

dunno if this is a windows question...but here goes. on my gateway health
status my cpu temp is 117c and sys temp is 24c but my cpu fan runs at over
2500 rpm from the getgo. started doing it about 6 months ago intermittently
and now is constant. computer is no more than 3 years old. this is really
irritating.

 

[JS]

Although you did not specify your CPU type,
a normal CPU temperature should typically be
below 50 C and not 117 C which explains why
the fan speed is high.

Shut the PC down, open the case if you haven't
done so already, check for dust on the Heatsink/Fan
and motherboard. Clean with compressed air if you
have a large amount of dust, especially the heatsink fins.
Try rebooting and checking the CPU temp again.

Also try downloading and installing "SpeedFan" as another
means of verifying the CPU temp.
http://www.almico.com/speedfan.php

If its still high, this is a serious condition most likely caused
by the heatsink becoming partially dislodged from the CPU.
Continuing to run your PC at this high CPU temperature
could damadge the CPU and other PC components.

 

[Peter Foldes]

buddman

I have no idea why the concern from you. My CPU fan is running at 3600 RPM and the
temperature of the CPU is 42 Celsius. This is quite normal

 

[Twayne]

Seriously doubt the 117c. That is 242.6F. Much too hot to survive.

Not too hot to survive; for a short period of time anyway. It will
hasten the death of it and nearby components though. It's definitely
way too hot. Could be a lot of dust inside messing up the fans, another
fan as quit, something blocking air flow, etc..
Definietly should open the case and inspect for dust in, on and
covering the fan blades, etc.

 

[Paul]

dunno if this is a windows question...but here goes. on my gateway health
status my cpu temp is 117c and sys temp is 24c but my cpu fan runs at over
2500 rpm from the getgo. started doing it about 6 months ago intermittently
and now is constant. computer is no more than 3 years old. this is really
irritating.

You might check as well, that the CPU heatsink is still secured to the motherboard,
so that the heatsink is doing its job. Sometimes a heatsink clip will snap or a
pushpin will come loose. The heatsink needs to be pressed into contact with
the top of the CPU, for good heat conduction.

You can also try Speedfan from almico.com , as it has the ability to
read out the hardware monitor (and the temperature value). Just
as a double check of what you're seeing.

http://www.almico.com/sfdownload.php

http://www.almico.com/sfscreenshots.php (screenshot of temp monitor screen
note - not all temps get labels)

On one generation of computers, the over temperature thing is set at
135C. On more recent CPUs, it is 20C over the throttle temperature,
or about 90C or so. Modern CPUs (both AMD and Intel) are protected by
THERMTRIP, and the CPU actually sends a signal to the power supply control
circuit, causing the supply to be turned off without warning.
So if your computer was really running the CPU at 117C, there
is at least a chance that the CPU internal protection feature would
have turned off the computer in response.

Paul

 

[Roy Smith]

dunno if this is a windows question...but here goes. on my gateway
health
status my cpu temp is 117c and sys temp is 24c but my cpu fan runs at
over
2500 rpm from the getgo. started doing it about 6 months ago
intermittently
and now is constant. computer is no more than 3 years old. this is
really
irritating.

When was the last time you opened up the computer and blew the dust out?
Chances are you've got dust buildup on the heatsink for your CPU.

 

[witan]

You might check as well, that the CPU heatsink is still secured to the motherboard,
so that the heatsink is doing its job. Sometimes a heatsink clip will snap or a
pushpin will come loose. The heatsink needs to be pressed into contact with
the top of the CPU, for good heat conduction.

You can also try Speedfan from almico.com , as it has the ability to
read out the hardware monitor (and the temperature value). Just
as a double check of what you're seeing.

http://www.almico.com/sfdownload.php

http://www.almico.com/sfscreenshots.php (screenshot of temp monitor screen
                                           note - not all temps get labels)

On one generation of computers, the over temperature thing is set at
135C. On more recent CPUs, it is 20C over the throttle temperature,
or about 90C or so. Modern CPUs (both AMD and Intel) are protected by
THERMTRIP, and the CPU actually sends a signal to the power supply control
circuit, causing the supply to be turned off without warning.
So if your computer was really running the CPU at 117C, there
is at least a chance that the CPU internal protection feature would
have turned off the computer in response.

    Paul

I have speedfan on my computer. The temperature readings given by it
are: Temp1, -[minus?]48C; Temp2, 61C; Temp3 128C; HDD 35C; and Temp1
[yes, it is a repeat] 67. Obviously, the readings look ridiculous,
except for the HDD. "HDD Thermometer" also gives 35C as the temp,
which I think is some 5 to 6 C higher than the actual. What it all
means to me is that the temperature senser in the Motherboard (which
must be being used by Speedfan, HDD Thermometer or other software) is
misbehaving.