TYAN TOMCAT K8S Manual page 19

This chart outlines the rules for populating memory
DIMM Slot
64-bit
Mode
(MB)
128-bit
Mode
(MB)
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.
(Note: X = Do not populate)
DIMM1 DIMM2 DIMM3
X X 256
256 X 256
X X 512
512 X 512
X X 1024
1024 X 1024
X X 2048
1024 X 2048
2048 X 2048
X X 4096
4096 X 4096
X X 256
256 256 256
X X 512
512 512 512
X X 1024
1024 1024 1024
X X 2048
2048 2048 2048
X X 4096
4096 4096 4096
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DIMM4
X
X
X
X
X
X
X
X
X
X
X
256
256
512
512
1024
1024
2048
2048
4096
4096