Apple iMac G5, 20-inch - Manual (Page 32)

30 - iMac G5 (20-inch) Take Apart Inverter
5. Locate the memory module(s) in the bottom right corner. You must remove the
memory to gain access to the inverter.
6. Rotate the computer counterclockwise so the memory is in the position shown below.
7. To release the memory from its slot, push down on the two side latches (circled
below). Then pull the memory module out of the slot. Repeat this step if you have a
second memory module.