noobclocker1277

i bought a new 120mm fan for my case and wheni plug it in via a molex connector it sounds like a jet engine. when i plug it in wia the 3 pin connector to the mobo it don't come on at all (leds or spins up) and i idea on how to sort this?

thanks

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AMOCO

go in to the bios & enable the cpu fan,then the 3 pin should work on the motherboard,other than that u will need a fan controller to slow the fan down

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noobclocker1277

will pluging it in to the mobo reduce the noise? (reduse fan rpm's?)

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AMOCO

true

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noobclocker1277

ok cool, thanks

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PCCstudent

Make sure that super fan does not pull more amps than your mobo can safely supply. I have two 120x38 Deltas that pull 3.0 amps each at start-up. this is way too much for a mobo to handle,in fact they came with a warning not to connect to a mobo.

Willage

make sure that it's seated properly on the CPU, and it might be a good idea to get a good fan controller, and set the speed to low

PCCstudent

Noobclocker states its a case fan not a cpu fan so cpu seating is not and issue.

JadedFloridian

No, the fan will run at full speed if plugged directly into the motherboard (3 pin). As already mentioned, if your fan has too much amperage you run the risk of possibly blowing your motherboard.

Your options are either getting a fan controller (I'd suggest a Sunbeam Rheobus, as long as your fans are ~20W or less you'd be fine), or soldering a resistor onto the fan wire itself.

noobclocker1277

why would it have a mobo connector on it if itisn't ment to be connected to the mobo?

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