Apple powermac server g3 minitow Servicehandbuch

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 Troubleshooting
New Components Theory of Operation/Processor Module - 3
 
Processor Module
 
The logic board comes with a removable processor module. You can 
replace this module when the logic board or processor module 
fails. The processor module sits in a ZIF socket for easy removal. 
Processor modules can be ordered from Service, and each is 
shipped with the appropriate jumper configuration block to place 
in location J16. The processor should rarely fail. Replace it only 
as a last resort.
When replacing the processor module, you must change the pro-
cessor jumper block and warranty sticker to be compatible with 
the processor module you are installing. Failure to install the 
jumper block properly will result in a unit that does not boot up. 
Refer to “Processor Module” in Take Apart for installation 
instructions.