While at my project of fixing my busted G5 collection (accumulation) I discovered that some 2x2.0 GHz configurations have a logic board with the plug for the pump, so I assume that the upgrade of these units with 2.5 or 2.7 GHz processors (the only cooled by liquid excluding later dual) is feasible. Any thoughts on this? Logic board number is: 820-1592.
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