Dimm Population Rules - Sun Oracle Sun Server X4-2 Service Manual

DIMM Population Order for Dual-Processor Systems
TABLE:
Population
Order Figure Callouts
Fill the blue sockets first
First 1
Second 3
Third 5
Fourth 7
Then fill the white sockets
Fifth 9
Sixth 11
Seventh 13
Eighth 15

DIMM Population Rules

The DIMM population rules for the server are as follows:
In dual-processor systems, all DIMM sockets can have either a DIMM or DIMM
■
filler panel installed.
Note – In dual-processor systems, DIMM filler panels are not required in sockets
that do not have DIMMs installed.
In single-processor systems, all DIMM sockets associated with processor 0 (P0)
■
socket can have either a DIMM or DIMM filler panel installed. DIMM sockets
associated with processor 1 (P1) socket must remain empty, that is, neither DIMMs
nor DIMM filler panel should be installed.
Note – In single-processor systems, DIMM filler panels are not required in sockets
that do not have DIMMs installed.
A single DIMM configuration is supported.
■
Do not populate DIMM sockets next to an empty processor socket. Each processor
■
contains a separate memory controller.
DIMM Sockets for
Processor 0 (P0) Figure Callouts
Fill D0 first 2
Fill D2 first 4
Fill D5 first 6
Fill D7 first 8
Fill D1 first 10
Fill D3 first 12
Fill D4 first 14
Fill D6 first 16
Servicing CRUs That Require Server Power-Off
DIMM Sockets for
Processor 1 (P1)
Then D0
Then D2
Then D5
Then D7
Then D1
Then D3
Then D4
Then D6
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