128 Installing System Components
1. Requires x4- or x8-based memory modules.
Installing Memory Modules
WARNING: The memory modules are hot to the touch for some time after the
system has been powered down. Allow time for the memory modules to cool
before handling them. Handle the memory modules by the card edges and avoid
touching the components on the memory module.
CAUTION: To ensure proper system cooling, memory-module blanks must be
installed in any memory socket that is not occupied. Remove memory-module
blanks only if you intend to install memory in those sockets.
1
Turn off the system, including any attached peripherals, and disconnect
the system from the electrical outlet and peripherals. Open the system.
See "Opening the System."
2
Remove the expansion card stabilizer. See "Removing the Expansion Card
Stabilizer."
3
Remove the cooling shroud. See "Removing the Cooling Shroud."
4
Locate the memory module sockets. See Figure 6-1.
5
Remove the memory-module blanks from the sockets in which you plan to
install memory modules:
Press down and out on the ejectors on each end of the socket until the
memory-module blank pops out of the socket. See Figure 3-20.
NOTE: Make sure to retain any removed memory-module blanks for future
use.
Mirroring 1-GB vacant X
XX
X
XX
2
4
1
2
4
8
2
4
2-GB vacant X
XX
X
XX
4
8
2
4
8
16
4
8
Table 3-3. Sample UDIMM Memory Configurations (Per Processor)
Memory
Mode
Memory
Module
Size
Memory Sockets Single Processor Dual Processor
1
4
2
5
3
6
Physical
Memory
(GB)
Available
Memory
(GB)
Physical
Memory
(GB)
Available
Memory
(GB)
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