on 5/21/04 1:07 AM, Ken at [EMAIL PROTECTED] wrote:

> 
>> Recently, I've been asked to repair two Power Mac 8500s that power up but
>> fail to boot. On each machine, there's no boot sound, there's no launch from
>> the hard drive (it spins briefly and then stops), and the monitor remains
>> black.
>> 
>> I've checked the motherboard batteries (3.6-volt lithium) and they're both
>> good. Am I dealing in each case with a bad power supply?
>> 
>> Any suggestions and repair advice would be appreciated.
>> 
>> Joe Braddy
>> Winter Haven, FL
> ---------
> First guess would be that the processor card is not fully seated.
> 
> Ken


I would pull all of the removable cards. ie: CPU, RAM, Cache, PCI's,
etc....clean the contacts and re-seat them.

Take the battery out and letting it set unplugged overnight seems to help
sometimes also.

Ron


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