The Egg wrote:I was given a nearly identical iMac a few years back. It had what turned out to be a dying hard drive, but this manifested in strange ways, and was difficult to diagnose. Replacing the hard drive involved popping open the shell and removing the screen panel (among other things). It was more work than any hard drive replacement should be, but there are online guides which helped alot. I remember it running Snow Leopard quite well with a 2Ghz C2D and 2GB, so if yours is performing poorly, maybe something similar is going on.
Assuming it's even possible, I don't think trying to repurpose the screen panel is worth your effort. If you don't like seeing things go to waste, I would give Memtest86 a run overnight, and then try a clean install on a new hard drive. You might find it miraculously fixes your problems.
Good general advice for sure, but not applicable in this situation. Hardware has already been tested good (aside from the PSU starting to develop issues). Not sure how much experience you've had with the abomination of an OS that is "Mavericks", but it is a bloated, Vista-esque nightmare. I have it installed on one of my work systems - an i7 Mac, and it was slow to the point of being borderline unusable until I bumped it up to 8GB of RAM and threw an SSD in there. Let's just say it doesn't run all that well on a C2D with 3GB of DDR2 on the wife's iMac.
Thanks to everyone who chimed in. Pretty much what I unfortunately suspected. Hope she's willing to go with a PC at this point.