Hey all, been thinking about upgrading my 2.0GHz G5 (June 2004) to a 2.7GHz CPU from ebay and I'm just wondering if it's even an option? I know the 2.7GHz G5 processor is liquid cooled so that might be a deal-breaker but does any one know if Apple changed the logic board design/changed the firmware so that this isn't possible? The 2.7GHz is still running on the PCI-X logic board and it wasn't until the 'Late 2005' Power Mac G5 revision that Apple moved to PCI-Express and changed everything. Would be awesome to get more life out of my aging G5 instead of giving up $3Grand for a mac pro. Thanks for anyones help!