CPU fan speed

Foxconn x38a / Ibuilt
February 24, 2009 at 07:15:27
Specs: XP Home/VistaPrem64b, Xeon 3110 3.0/G.Skil
I bought this combo for my son...
ECS Goal3+(1.1C) AMD Sempron 3000+ 754 SiS 761 GX Micro ATX Motherboard/CPU Combo

Put it all together and everything works great except the CPU fan is running at 5400RPM and sounds like a jet engine.

I enabled Cool N Quiet in bios and the CPU temp is 30c.

I flashed bios to newest version also.

Am I missing something?


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#1
February 24, 2009 at 10:45:16
some fans are just noiser than others. i doubt your CPU needs 5400rpm though, that's pretty fast. 1800-4000rpm should be plenty for most air cooled cpus.

is that 30C temperature at rest (idle) or under load? measured from BIOS or 3rd party software?

is the cpu fan connected to the motherboard via a 3pin connector, or just plugged into power? the 3 pin connection on the mobo allows the computer to control rpms based on temperature.

as long as your CPU temps are okay, there's no reason why you couldn't just buy a quieter fan. just make sure it will fit on your current heat sink.

fans measure amount of air moved in CFM (cubic feet per minute), and measure noise output in decibels (dB).


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#2
February 24, 2009 at 11:00:00
There are settings in Cool & Quiet for when the fan kicks in. Check those and possibly raise the settings.

Is the CPU cooling fan connected to the CPU fan header?


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#3
February 24, 2009 at 12:48:57
"is that 30C temperature at rest (idle) or under load? measured from BIOS or 3rd party software?"

At rest from BIOS.

"is the cpu fan connected to the motherboard via a 3pin connector, or just plugged into power? the 3 pin connection on the mobo allows the computer to control rpms based on temperature."

3 Pin to 3 pin cpu fan on motherboard.

"as long as your CPU temps are okay, there's no reason why you couldn't just buy a quieter fan. just make sure it will fit on your current heat sink."

The thing is, I used this fan on the old Motherboard/CPU, another Sempron, and it was never loud.

"There are settings in Cool & Quiet for when the fan kicks in. Check those and possibly raise the settings. "

My only choice that I see is enabled/disabled?

"Is the CPU cooling fan connected to the CPU fan header?"

Yes.

My only guess is that the motherboard is crap and the Cool N Quiet is defective.



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Related Solutions

#4
February 24, 2009 at 13:07:05
Look for the settings in PC Health.

If you recycled the HS/fan perhaps it is too small to cool the faster chip.


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