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...
Answer to: CPU Fan runs at full speed.Well I opened the MAC and put an external power supply unit to the fan with a poti in between. I let it run an 7V and got the poti in a mode it is very silent. If the device is getting too hot, I put the PSU at 9V. I also installed MACS Fan Control and say, that it should turn on the HDD Cooler if the CPU temperatur is going over 75°C, so I was informed to put on 9V mode :D Well it's not the best solution but an new MAC is not far away .
Answer to: CPU Fan runs at full speed.Well I tried several things, my solution is not the best but it works well. I bought an external power supply 3V to 12V and a potentiometer and build a controlunit for the fan. Then I installed Macs Fan Control and this program turns on the other fans if the CPU is going over 80°C and then I have to run the power supply at 9V ;)