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3 wire vs. 4 wire fans

Discussion in 'Hardware' started by blonde288, Apr 19, 2005.

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  1. blonde288

    blonde288 Thread Starter

    Apr 19, 2005
    I am currently building a new machine, with P4 3.2ghz. I've read several times that Prescott core cpus like the Intel 640 run very hot, and that the OEM heat sink stinks (n) . I have decided that the 3D rocket cooler from GigaByte, which got rave reviews everywhere for effectiveness and quiet, would be the best solution.

    My board is the newest mean machine from Foxconn, the 925XE7AA-8EKRS2, and uses a 4 pin cpu fan header, as the OEM fan from Intel uses a 4 pin plug. The 4th pin is PWM (pulse width modulation signal to the fan for variable speed control) The GigaByte fan does NOT have the 4th pin. Will Intel's on chip thermoster still operate the fan in a variable speed mode normally without the use of the PWM pin? Is there something in BIOS I need to set to ensure this?

    Just don't want to waste my money on a turbo performing cooler, if it's stuck running on only one speed...
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