Will not power up.
Bought an early 2009 iMac 24 off Craigslist yesterday. Everything tested fine at the seller's office. I bring it home, plug it into a surge protector, push the power button and ... nothing. No beep, no fan, no power, completely dead.
I've tried replacing the power cord, keyboard, mouse; I even plugged it into another wall socket. No joy.
What are my next steps? A power supply swap?
Is this a good question?