Monitor is black out! Help!
I opened up my iMac a second time. I replaced thermal paste on the CPU & GPU. In the process I got some paste onto some other parts which I wiped up with alcohol.
After re-assembly my system would not turn on the main display. When I hook up other display via Thunderbolt (DisplayPort) the system is still working.
I went to repair center and told me to change logic board for 700 bucks. It did happen before without opening, but some how it cameback with PRAM draining trick.
Only thing I didn't try is changing the coin battery and changing display cable. It looks like backlight is not working
I can't think of any reason for it to not work. other than thermal paste (Arctic Silver 4) heard it is not conductive. The fact that the computer itself still works makes me wonder even more.
Does anyone has solution to this?
Cette question est-elle utile ?