Liquid Cooling System LCS
The Power Mac G5 (June 2004 Dual 2.5 GHz/Early 2005 Dual 2.7 GHz) configurations use a liquid cooling system (LCS) to manage the temperature in the computer. The liquid cooling system is sealed and is designed to be opened only by an Apple Authorized Service Provider (AASP).
To ensure proper safety and handling of the LCS system, please read the following information. General Safety Information
The LCS cooling system fluid is predominantly water (80% or greater) with a mixture of corrosion inhibitors, antifreeze, and bacterial growth preventatives. In normal use in a non-leaking LCS there are no special handling considerations. However, if a leak in the system is suspected or discovered and the computer is plugged in, remove power to the computer by pulling power plug.
Nitrile or rubber glove should be worn when handling an LCS module that is leaking or suspected to be leaking. Evidence of leaks would include corrosion around fittings in the LCS coolant system, a light green or red liquid present, or a slick or slimy feel when handling the part. For leaks or spills, wipe up the fluid using rags, paper towels, or other suitable materials. Dispose of all cleaning materials according to local laws and regulations (Refer to laws and regulations pertaining to disposal of Antifreeze). Do not combine used coolant with any other chemical.
Place the failed LCS module (leaking or not) in the packaging that the replacement module came in. Follow the packaging instructions included with the replacement module. Failure to follow the instructions could damage your equipment and void warranty coverage.
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