Apple imac 17in 1ghz Servicehandbuch

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2 -   iMac  (17-inch Flat Panel, 1GHz)  Upgrades
 Memory, SO-DIMM
Procedure
Opening the Computer
Warning: The computer must be turned off before RAM modules are removed or 
inserted. To remind you, a red LED is visible in the access door. If the red LED is on, 
power is on, and must be turned off before changing RAM modules.
1.
Shut down the computer. 
2.
Unplug all cables from the computer except the power cord.
3.
Lay the computer down on a soft cloth.