TechSpot

Spoofing CPU Fan with header mod?

By mhains
Dec 14, 2004
  1. I've installed a Zalman quiet CPU Heatsink/fan for a friend's 2002 MSI mobo, but when the power comes on, the CPU alarm kicks in. No BIOS bypass possible.

    Because the fan spins at such a slow speed, the BIOS thinks there's no fan attached.

    Anyone know how I can trick the header into thinking there's a full speed fan running? Perhaps a resistor that goes from the red to the yellow on the header?

    Michael
     
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