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Installation order: memory mirroring with four processors

Memory module installation order for memory mirroring with four processors installed in the server.

The following tables show the DIMM population sequence for memory mirroring when four processors are installed.

  • Processors 1 and 2 are installed on the system board.

  • Processors 3 and 4 are installed in the processor and memory expansion tray.

Note

When adding one or more DIMMs during a memory upgrade, you might need to remove some DIMMs that are already installed to new locations.

Table 1. Memory mirroring with four processors (Processors 1 and 2)
TotalProcessor 1Processor 2Total
DIMMs123456789101112131415161718192021222324DIMMs
881020228
10       8 10 12       20 22  10
1235810202212
14  3 5  8 10         20 22 2414
16358101517202216
181 3 5  8 10 12  15 17  20 22  18
20135810121517202220
221 3 5  8 10 1213 15 17  20 22 2422
241358101213151720222424
26  345678910  13 15 17  20 22 2426
28345678910151617181920212228
30  345678910    1516171819202122  30
32345678910151617181920212232
34123456789101112  1516171819202122  34
3612345678910111213141516171819202122232436
3812345678910111213141516171819202122232438
4012345678910111213141516171819202122232440
4212345678910111213141516171819202122232442
4412345678910111213141516171819202122232444
4812345678910111213141516171819202122232448

Related DIMM population sequences for four processor systems:

Table 2. Memory mirroring with four processors (processor 3 and 4)
TotalProcessor 3Processor 4Total
DIMMs252627282930313233343536373839404142434445464748DIMMs
8323444468
10       32 34 36       44 46  10
1227293234444612
14  27 29  32 34         44 46 4814
16272932343941444616
18  27 29  32 34    39 41  44 46  18
202527293234363941444620
2225 27 29  32 34 36  39 41  44 46  22
2425272932343637394144464824
2625 27 29  32 34 3637 39 41  44 46 4826
2825272932343637394144464828
30  2728293031323334  37 39 41  44 46 4830
322728293031323334394041424344454632
34  2728293031323334  37 39 41  44 46 4834
3625272932343637394144464836
38  2728293031323334  37 39 41  44 46 4838
402728293031323334394041424344454640
4225262728293031323334353637 39 41  44 46 4842
442526272829303132333435363940414243444546474844
4825262728293031323334353637383910414243444546474848

Related DIMM population sequences for four processor systems: