As it turns out I reassembled the iMac; did not repair or replace the heat sink sensor and did not connect it to the MoBo.
The Mac started up completely. Before I baked the GPU, it would stall with the startup progress bar exactly halfway. It would start ok in Safe Mode.
Dear James, I've got a late 2009 27" iMac. I followed the disassembly procedure and after preparing the GPU and heat sink I was ready to reassemble. But the sensor connector that goes from the heatsink to the back of the motherboard now has a problem.
There are a green and black wire that end in a tiny black connector, but the black wire has broken off or become disconnected there. Can I try to reconnect it, or should I replace the wire bits, or replace the entire heatsink, or just give up.
If I just connect it as is, will the GPU not be reporting its temp, thus inviting the fans to blow at top speed? Please advise. - Robert
Hi, I just installed Mac OS X High Sierra in my 2010 Mac Pro. The first monitor is active with the ATI Radeon HD5770. However the #2 screen is inactive with its ATI Radeon HD3870. Should I get another HD5770 or a different card so I can use the second screen?
I bought a used Grill Master 720-0697 and cleaned it up. The ignition worked the first day but not the second day. I unscrewed the button and there was the battery! Replaced the battery and it works again. Thanks.