First off, bit of a background. We do development at work using Visual Studio for Mac, which is the worst IDE ever but I digress, and I used to use my Hackintosh partition on my old T430 if I needed to work from home.
Recently I switched to a T440p and not had time to piss about installing MacOS yet (be it in a VM or on bare metal), and was given this iMac on the basis that it didn’t work, and the Apple store quoted £900 to replace the ‘faulty’ motherboard. I’d like to fix it so I can keep my Thinkpad free of MacOS and Windows.
The iMac suffers from being extremely slow in any Apple utility (like the recovery) and the internal display does not work.
I cannot remember the model number, but it has an i5 4570R, 8GB RAM, 1TB 5400RPM (!) HDD, and Iris Pro graphics.
Thing is, it does actually work. I can successfully boot into Linux and use it as normal, and it also boots into Windows. Linux Mint does not recognise the internal screen at all. MacOS is currently not installed on the machine as it was used for gaming believe it or not. I’ve taken the whole thing apart, which wasn’t fun with all the bloody glue, cleaned the dust, repasted CPU, and resat everything. Though it doesn’t seem to have done much in the way of fixing it. Also tried different RAM.
From watching Louis Rossman videos it appears to have the symptoms of sensor failure, but with my untrained eye I cannot see any damage to the board.
Does anyone have the slightest idea where I can start looking for fixes? I don’t care much for the internal display as I can always use an external one, but I need to get MacOS on it and running at normal speed, and seeing as the recovery stuff takes 5 mins to load with a spinning wheel in the corner I don’t think that will happen.