So I come into the Mac Lab here at school yesterday to update the software on the machines, clean up, etc, and I find a Bondi blue iMac (233) sitting on the table. It's an orphan, left on my doorstep.
Upon boot, I hear four ugly beeps and get nothing but a blank screen. A quick check of the Apple database tells me that this indicates a bad ROM. That sounds serious. Is this machine going to be good for anything except parts?
Try booting it while holding CMD-Opt-O-F. If it will get to Open Firmware, it's in good enough shape to fix. Is there still a working HD in it? Try to boot a CD in it.
I thought that 4 beeps ment it had bad ram in it, or not for that type of computer...
EDIT: Do'h! Found the error codes, and the OP is right. If anyone needs them here they are (from the imac service manual):
Following is a definition of what the error beeps at startup time
No RAM is installed or detected.
EDO memory is installed. (The iMac ships with
SDRAM SO-DIMMs and does not accept EDO memory).
No RAM banks passed memory testing.
4 or 5 Beeps:
Bad checksum for the remainder of the boot
ROM. The ROM (which is located on the processor module)
I tried the Open Firmware startup... no dice. The four beeps occur as soon as the power button is pressed; practically before the light behind the power button comes on!
This thing is trash, isn't it? :cry:
Get a new processor card for £25 or so on Ebay...or buy mine!