Bad Bondi iMac ROM?

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Joined: Dec 20 2003
Posts: 4

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?

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Jon's picture
Jon
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Joined: Dec 20 2003
Posts: 2804
Try booting it while holding

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.

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I am not in this world to live up to other people's expectations, nor do I feel that the world must live up to mine. - Fritz Perls

JetStar's picture
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Joined: Dec 20 2003
Posts: 155
I thought that 4 beeps ment i

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
signify.

1 Beep:
No RAM is installed or detected.

2 Beeps:
EDO memory is installed. (The iMac ships with
SDRAM SO-DIMMs and does not accept EDO memory).

3 Beeps:
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)
is bad.

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It must be user error.

Offline
Joined: Dec 20 2003
Posts: 4
I tried the Open Firmware sta

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? Crying

martakz's picture
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Joined: Dec 20 2003
Posts: 634
Get a new processor card for

Get a new processor card for £25 or so on Ebay...or buy mine!

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Now using x86 machines. Bye bye iMac266 (Strawberry), G3 1400 and the G3 IIsi.