CPU Fan runs at full speed.
Hi, the CPU fan of my iMac is running at full speed. iStat says it's not running (0rpm). The temperatur sensor is working, my ASP says, that's a problem with the logicboard. Any resets (SMC, PRAM) are done but this problem is still there. I just bought an external fan control but first I want to ask if somebody know the pin assignment of the CPU fan plug.
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