Installing System Components 117
Installing Memory Modules CAUTION: Only trained service technicians are authorized to remove the system
cover and access any of the components inside the system. See your Product
Information Guide for complete information about safety precautions, working
inside the computer, and protecting against electrostatic discharge.
1
Turn off the system, including any attached peripherals, and disconnect
the system from the electrical outlet.
2
Open the system. See "Opening the System" on page 71.
3
Remove the memory cooling shroud. See "Removing the Memory Module
Cooling Shrouds" on page 94.
NOTICE: Never remove the memory cooling shroud without first powering down
the system. Overheating of the system can develop quickly resulting in a shutdown
of the system and the loss of data.
4
Locate the memory module sockets on the system board. See Figure6-2.
CAUTION: The DIMMs are hot to the touch for some time after the system has
been powered down. Allow time for the DIMMs to cool before handling them.
Handle the DIMMs by the card edges and avoid touching the DIMM components.
5
Press the ejectors on the memory module socket down and out, as shown
in Figure3-25, to allow the memory module to be inserted into the socket.
Table 3-2. Memory Sparing Configurations
DIMMs Available
Memory
Spared
Memory
A1, A2, B1, B2 A3, A4, B3, B4 A5, A6, B5, B6 A7, A8, B7, B8
512 MB 512 MB 512 MB 512 MB 6 GB 2 GB
1 GB 1 GB 1 GB 1 GB 12 GB 4 GB
2 GB 2 GB 2 GB 2 GB 28 GB 4 GB
4 GB 4 GB 4 GB 4 GB 56 GB 8 GB
8 GB 8 GB 8 GB 8 GB 112 GB 16 GB
Indicates a spared single-rank DIMM (512-MB or 1-GB). The entire capacity of this
DIMM is reserved for sparing.
Indicates a spared dual-rank DIMM (2-GB and higher). One-half of this DIMM’s
capacity is reserved for sparing.