There is a further stage in this firmware problem, one which I believe I am experiencing with this newly purchased Lime 400DV, where the computer won't even start up properly, never mind show screwed up video. I have dug around and come up with some good info http://frderi.spymac.net/imacresurrected/ but it still doesn't help.
- Background I bought the iMac with Mac OS X installed but screwed up video, and I knew immediately it was the firware problem. I updated the firmware as usual (have done it a few times before) but something didn't go 100% as it never rebooted properly after the actual reboot-long beep-reboot.
- Actions taken I have done all the resets, incl. Open Firmware "reset-all" and I have followed the instructrions in, http://frderi.spymac.net/imacresurrected/ but the iMac still refuses to play. It starts up, the screen comes on a little scew and very bright and then switches off after a few seconds.
- Firmware I can start up using an external display according to the instructions http://frderi.spymac.net/imacresurrected/ and the external video is really crap as the text outlines, but readable and when I go to update the firmware it reports that it is up to date/same version.
All I can guess is that it is either present but corrupted, or the iMac "thinks" the video board is screwed as I read somewhere, and needs to be reset, but I have tried some of the video cable unplugging without success.
I'd rather not scrap this nice little Lime iMac...
Any ideas or tips ?
Larry
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