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This chart outlines the rules for populating memory
(Note: X = Do not populate)
DIMM Slot
DIMM1
DIMM2
DIMM3
DIMM4
X X 256 X
256 X 256 X
X X 512 X
512 X 512 X
X X 1024 X
1024 X 1024 X
X X 2048 X
1024 X 2048 X
2048 X 2048 X
X X 4096 X
64-bit
Mode
(MB)
4096 X 4096 X
X X 256
256
256 256 256 256
X X 512
512
512 512 512 512
X X
1024
1024
1024 1024 1024 1024
X X
2048
2048
2048 2048 2048 2048
X X
4096
4096
128-bit
Mode
(MB)
4096 4096 4096 4096
Memory Installation Procedure
When installing memory modules, make sure the modules align properly with the memory socket.
There should be keys (small indents) on your memory modules that fit according to the keys in the
memory socket. DDR modules and sockets have only one key, which is slightly near the center of
the module/socket. SDRAM modules (also referred to as PC100 or PC133) and their sockets have
two keys and will not insert into DDR DIMM sockets. The method of installing memory modules is
detailed in the following diagrams.
Once the memory modules are firmly seated in the socket, two clamps on either side will close and
secure the module into the socket. Sometimes you may need to close the clamps manually.