I've had a 20-inch core duo imac for nearly 2 years. Bought off ebay this has been my only machine for most of this time. Since i got it i have had video and or overheating issues. Only now that i have replaced it as my main machine do i feel confident enough to try to fix it. After being on for awhile i get random horizontal lines and partial lines, video artifacts, program crashes, frozen screens necessitating hard reboots. The more i tax the system the quicker and worse the problems develop. Speeding up the fans with SMC Fan Control helped a little, as did leaving it just in front of a window ac. Even so, these fixes were minimal.
Things that have been suggested to me as the problem range from perhaps a loose connection to a failing motherboard. If possible i would like to fix this thing, and figure i may as well try to upgrade it if going that route. So, my questions are these... -from these symptoms, what should i try to replace first? -can i get a core 2 duo board and processor from a 20-inch that would fit into this core duo chasis? -would that combo likely solve the problem, or must i consider changing the screen as well (color seems good with only a handful of bad pixels). -would this be a doable project overall, or be too costly to bother? -is there any way this could be a harddrive-related issue? I ask that because another alternative is to replace the smaller and noisier hd on my newer core 2 duo with the one in my original machine. Thanks for your suggestions! -bill -- You received this message because you are a member of the iMac Group, a group for those using Apple iMacs and eMacs. The list FAQ is at http://lowendmac.com/imac/list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to imaclist@googlegroups.com To leave this group, send email to imaclist+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/imaclist
