Logic board is not powering the cpu fan
Hello! The CPU Fan on my iMac EMC 2308 Late 2009 21.5 stopped working, I replaced the fan with another one and still the new fan doesn't work.
I imagine that the logic board is not supplying power to the connector, so is there something alternative for me to power the fan?
Because without turning the cpu it heats up, I adapted another fan connected to the SATA power port, but I can't control the speed, I had to leave it at just 3.3v, which is enough to use the iMac, but it still gets a little hotter than before.
Update (12/06/23)
I put the photos attached so you understand, the logic board is not powering the cpu fan.
I also tried to power the cpu fan using the molex or sata connector to supply 12v, but that didn't work either, I tried with two original cpu fans and the logic board doesn't power it.
So I dismantled one of the cpus fans and adapted a generic fan and connected it to the sata connector, but with 12v it makes a lot of noise, so I connected it to 3.3v
I mentioned above that if I could add the variable resistor inside the iMac and that by removing the glass I could control it, maybe that would solve it, just so I can adjust it at a speed that improves the air flow but doesn't make so much noise.
Ramon Ferreira さんによる
@ramonferre18311 sounds like you got this under control now. You know you can do it. You got this!!!!
oldturkey03 さんによる
@oldturkey03 - it wasn’t for you, it was to support what you had suggested.
Dan さんによる
@oldturkey03 I think I'll find a way to stay above the LCD, so it doesn't stick out of the case and look ugly.
Ramon Ferreira さんによる