Desktop won’t start, there is a blinking green light on the back of the power supply, which is normally solid green when 110V AC is plugged into it. I have tried the trick of holding the start button while plugging in the power cord ….. no help.
Solution:
(have your computer cables hooked up as normal, mouse, keyboard & etc)
Take a blow dryer and turn it on to blow air at the back of the power supply for a couple minutes.
When you see the light turn green you’re ready to roll.
Power on your computer!
Worked for me!