1 and DIMM connector 4. However, the size, speed, type, and technology of
the DIMMs that you install in DIMM connector 7 and DIMM connector 10 must
match each other.
– The following table shows the DIMM upgrade configuration sequence for
operating in non-mirroring mode (normal mode).
Table 3. 5. DIMM upgrade configuration sequence in non-mirroring mode
Number of DIMMs DIMM connectors
2 1, 4
4 1, 4, 7, 10
6 1, 4, 7, 10, 2, 5
8 1, 4, 7, 10, 2, 5, 8, 11
10 1, 4, 7, 10, 2, 5, 8, 11, 3, 6
12 1, 4, 7, 10, 2, 5, 8, 11, 3, 6, 9, 12
v You do not have to save new configuration information when you install or
remove DIMMs.
v See the User’s Guide on the IBM System x Documentation CD for more
information about memory mirroring and online-spare memory.
The
following illustration shows how to install DIMMs on the system board.
DIMM 1
DIMM 2
DIMM 3
DIMM 4
DIMM 5
DIMM 6
DIMM 7
DIMM 8
DIMM 9
DIMM 10
DIMM11
DIMM 12
v Install the DIMMs in the order shown in the following table.
Table 4. DIMM installation sequence
Memory in Non-mirroring mode Memory in mirroring mode
Number of DIMMs DIMM connectors Number of DIMMs DIMM connectors
1 1 4 1, 4, 7, 10
2 1, 4 8 1, 4, 7, 10, 2, 5, 8, 11
4 1, 4, 7, 10 12 1, 4, 7, 10, 2, 5, 8, 11,
3, 6, 9, 12
Chapter 2. Installing optional devices 15
