Maintenance and Service Guide

the remainder is assigned to single channel. If one channel will have more memory than the other, the
larger amount should be assigned to channel A.
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In any mode, the maximum operational speed is determined by the slowest memory module in the
system.
Installing memory modules
There are two memory sockets on the system board. To remove or install memory modules:
1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 16).
2. Remove the base unit rear and front access panels. See Base unit access covers on page 17.
3. To locate the memory modules on the system board, see Internal components on page 21.
4. To remove a memory module, press outward on the two latches on each side of the memory module (1),
and then pull the memory module out of the socket (2).
5. To install a memory module, slide the memory module into the socket at approximately a 30° angle (1),
and then press the memory module down (2) so that the latches lock it in place.
NOTE: A memory module can be installed in only one way. Match the notch on the module with the tab
on the memory slot.
6. Replace the base unit front and rear access panels. See Base unit access covers on page 17.
7. Reconnect the power cord and any external devices, and then turn on the computer. The computer
automatically recognizes the additional memory when you turn on the computer.
Memory 23