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Oracle® Server X6-2L Service Manual

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Updated: January 2018
 
 

Populating DIMMs in Single-Processor Systems for Optimal System Performance

In single-processor systems, install DIMMs only into DIMM sockets associated with processor 0 (P0). Starting with socket P0 D0, first filling the black sockets, 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 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.

Figure 4  DIMM Population Order for Single-Processor Systems

image:Figure showing the DIMM population order for single-processor                      systems.

The following table describes the proper order in which to populate DIMMs in a single-processor system using the numbered callouts in the above figure, the memory channel labels (Ch A through Ch D), and the DIMM socket labels (D0 through D11).

Table 8  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