Fan too slow ??

SteveAUSuk

Junior Member
Sep 20, 2004
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I've recently bought a P4 550 - It's a 3.4ghz Socket 775 Prescott chip (1mb cache). I am currently running it with the fan and cooler from a box set. However it is running far too warm - between 58 and 72°C when idle.
The fan is only spinning 2657 rpm which is in my opinion too slow. Does anyone here have the same chip as me and is running the cpu with the boxed cooler? If so I would be interested in to know what reading you are getting.

Would appreciate any feedback
 

Gravity

Diamond Member
Mar 21, 2003
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I'm not sure why the stock unit is running so very slow. Is the heat sink hot to the touch? If not you don't have a good seat on the die. If so, you need more air. Most stock units will run at 3-5k rpms and are not that quiet. Perhaps you have a bios setting that limits the fan speed? Sounds crazy, I know.

ARe you sure your temps are being reported correctly?

Prescott is known for heat btw, your stock cooler won't serve you well if you OC.
 

SteveAUSuk

Junior Member
Sep 20, 2004
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I'm not too worried about Overclocking. I would be satisifed if I can get the CPU running at a reasonable temperature. The heat sink is warm but not hot. I have an Asus P5AD2 mainboard. I've tried all the possible settings, but can't get the CPU fan to spin any quicker. Does anyone know whether the boxed cpu fan is temperature controlled? I've tried reading the temperture from the bios hardware monitor and Asus probe. These values do vary a bit. Between 58 and 72°C is the temperature reported by the bios. I have updated the bios to the latest version as I suspected the old bios version could be reporting the temperatures incorrectly, but they both return very similar values.
 

Smonkey

Junior Member
Sep 11, 2004
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Hi,
I've got a 3.2 775. according to bios it idles at 40c and hits 61c when stressed.
I'm using a foxconn mini atx with the Intel stock cooler.
I'll check the fan speed tonight when I get home from work.
I know it kicks up to jet engine DB's when the cpu is stressed.

-Tom

edit to add: I scraped off the thermal compound that came with the sink and replaced it with some arctic silver.

 

Smonkey

Junior Member
Sep 11, 2004
12
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The cpu fan starts out at 2500 and tops out a 4000.

Looks like a mobo or fan problem.

-Tom