Up for grabs is a rare dual processor PMG4 CPU upgrade ,professionally rebuilt by a veteran tech for durability and stability. Both processors are recognized in both Mac OSX and OS9. Thoroughly tested, stress tested at continuous 100 percent load for 26 hours in Mac OSX Tiger and another 16 hours in Mac OS9, and benchmarked in my factory CPU 733 MHz Power Mac G4 Digital Audio ( a 133 MHz bus machine ).
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