iMac wont install even in recovery mode.
So i recently replaced my PSU en HDD of my 27 inch imac recently. I replaced the PSU because it wouldn’t turn on anymore and the HDD because my old one died. It is a verified apple HDD with temp sensor so all good there. But once i try to install anything it will get past the loading bar and than a white screen and… nothing. Just a permenant white screen. Until about 30 min later when is flickers and turns off.
Any help would be aprieciated,
kind regards
Update (06/11/2019)
Thanks already to everybody who helped.
I tried the Linux LIVE USB and I think I can safely say the GPU is defective.
It does load the linux OS fine at first. I get a visual interface and right about when the resolution changes to the native resolution the background turns black and graphical glitches show up.
Also the screen kinda went on and off from time to time? Is this like a driver install thing? Anyway I can’t click anything in Linux though.
I can move the glitched cursor but nothing else. So it is safe to say it is the GPU?
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