Servicing the DIMMs (CRU)
90 Oracle Server X6-2 Service Manual • June 2016
TABLE 12
DIMM Population Order for Single-Processor Systems
Population Order DIMMs Sockets for Processor 0 (P0) Memory Channels
Fill the black sockets first
First D0 Ch C
Second D11 Ch A
Third D3 Ch D
Fourth D8 Ch B
Then fill the black sockets with white tabs
Fifth D1 Ch C
Sixth D10 Ch A
Seventh D4 Ch D
Eighth D7 Ch B
Then fill the white sockets
Ninth D2 Ch C
Tenth D9 Ch A
Eleventh D5 Ch D
Twelfth D6 Ch B
Populating DIMMs in Dual-Processor Systems for Optimal
System Performance
In dual-processor systems, populate DIMMs into DIMM sockets starting with processor 0 (P0)
D0, then, alternating between sockets associated with processor 0 (P0) and matching sockets
for processor 1 (P1). Fill the black sockets first, then the black sockets with white tabs, and
then the white sockets, as shown in the following figure. Notice that the order of populating the
black DIMM sockets is Ch C first, Ch A second, Ch D third, and Ch B last. Repeat the same
population sequence for the black sockets with white tabs, and finally, for the white sockets.
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