Screen blank, fans ramp up to max speed when turning on.
Some time ago I tried to repair my dad’s 2007 iMac (20” I think) but it didn’t go so well. My goal was to replace the SATA cable for the hard drive and upgrade the CPU. I installed the CPU with success, but the cable wouldn’t fit in. That’s not what I’m worried abut right now, though. When trying to power it on after re-assembly, the fans ramp up to max speed, and the screen is blank. I’ve tried resetting th SMC and all that stuff, but to no avail. I really want to get this machine working again, any solutions?
Edit 1: 1/13/2022
The iMac now turns on and is fully functional. The problem was a disconnected cable on the back of the motherboard, hence me not noticing it on the first look-through.
Edit 2: 1/14/2022
It was the CPU Heatsink heat sensor for anyone that cares.
Ist dies eine gute Frage?