Modern Tech Fail: iMac 27" Retina Repair (Mac shuts off randomly fix + disk drive upgrade)

This is another public service repair video for people experiencing the same problem. My swanky Apple iMac shuts off suddenly and randomly every few minutes, and refuses to turn back on unless I disconnect the mains for a while. That points to a power supply problem. So we open up the big Mac by popping the giant screen, transplant the supply, and upgrade the hard disk while we are at it. But none of it is straightforward, and it does not go quite as smoothly as expected.... See next video for the damaged screen teardown:    • Modern Tech Fail: iMac 27" Retina 5k Displ...