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Thread ID: 89779 2008-05-12 02:12:00 Case fan noise! jwil1 (65) Press F1
Post ID Timestamp Content User
668418 2008-05-12 02:12:00 I have bought a new case fan - it's cooler BUT it sounds like a vacuum cleaner :groan: (seriously)

Runs at 2500RPM - too fast and too loud!

I have successfully slowed it down using SpeedFan (to 40%) but I have to launch speedFan and slow it down again after a reboot .

Is there a way I can slow it down on boot?

Specs below .

EDIT: Being powered by a 3-pin connector on mobo .
jwil1 (65)
668419 2008-05-12 02:22:00 Get a fan controller.

www.trademe.co.nz

www.modster-pc.co.nz
wratterus (105)
668420 2008-05-12 03:44:00 some fans come with a small inline resistor that can be added to drop the speed, I don't know if you can buy them seperately though.

The fan will have either a current or wattage rating so if you felt adventurous you could work out the resistance and buy a resistor to suit and insert it in the +12V wire. A 0.8A fan for example works out to about 15 ohms to half the voltage.

A cheap fan controller is simply a variable restor with a nice front panel.
Some more expensive ones could possibly use pulse width speed control.

Or just buy a slower fan.
dugimodo (138)
668421 2008-05-12 03:45:00 p.s. some ASUS motherboards, and possible others, have an option in the Bios to control the fan speed based on temperature. ASUS call it Q-fan. Some only control the cpu fan, but mine (P5K) also slows down the case fan dugimodo (138)
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