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Help,all I get is a blue screen and mac won't boot from disk

by helly / September 7, 2010 6:55 AM PDT

mac pro, dual core intel, tiger 10.4, 2 gig ram

I was working along when my screen went gray and a message popped up saying i had to restart my computer. I attempted to restart and only get as far as a blank blue screen. I tried zapping the p-ram, didn't help. I am also unable to start from my factory install disk. I've tried holding down the C and D keys and also a combo of command, option, shift & delete while starting, no options are working. Any ideas?

One other thing, when this happened I was using the parallels dual boot program and was working with Quickbooks on the MS-XP OS.

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Got it started by unplugging everything.
by helly / September 7, 2010 9:33 AM PDT

ran disk utility "verify" and all was good. any other maintenance procedures you would recommend?

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You have already zapped the PRAM
by mrmacfixit Forum moderator / September 7, 2010 9:35 AM PDT

and run disk utility.

Unless you have some other "tools" on hand, Onyx for example, there is not much else to do

When you say everything, does that include power?

Could be that the logic board got a little confused there and needed to "rest" a while


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No, kept power plugged in
by helly / September 7, 2010 11:39 PM PDT

but disconnected everything other than the monitor. After it started up I started to plug in all the peripherals and restarted the computer and it started up ok. So far so good. If it happens again I'll try unplugging one thing at a time and restart to see if I can identify the culprit.

But the question still remains, why can't I boot from my Tiger disc? It's a factory copy and what is installed on my machine.

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(NT) You may need to give it a go with a DVD cleaner
by mrmacfixit Forum moderator / September 8, 2010 5:10 AM PDT
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