Yes, I know there are a few write-ups regarding the complete overhaul of the G5 liquid cooling system. However, the ones I have seen are for the DP 2.5 GHz Delphi system, or for the G5 Quads. My DP 2.5 GHz G5 has the Panasonic cooling system, and I assume it has never had any maintenance done. I notice that my G5 has CPU temps averaging in the 50-60°C range, and to me those temps seem a bit high, especially for normal usage (i.e - not under a heavy load). Did Apple specify maintenance intervals for the LCS? Here is my main question: Does anyone know how to flush and refill the Panasonic cooling systems?