System won't boot after video card replacement
Replaced the GPU in my 24" iMac, following a number of web resources. No the machine won't boot. The pilot lamp (lower right corner) comes on, and at least one of the fans runs, but no screen backlight and (apparently) no HDD action. With the bezel removed, I have one green LED just above the memory slots, so I believe the Power Supply is OK. I've had the bloomin' thing open half a dozen times, looking for something I forgot to reconnect, but there don't appear to be any empty connectors. Any suggestions on what to do next?
Is this a good question?