Installation Order - NEC Express5800/R120b-1 User Manual

9-26 Upgrading Your Server

Installation Order

Installation order depends on the number of CPUs installed.
1-CPU configuration:
Install DIMMs starting from the smallest slot number.
2-CPU configuration:
Alternately install DIMMs starting from the smallest slot number of each CPU.
Install DIMMs starting from the largest capacity and from the smallest slot number (16GB
→ 8GB → 4GB → 2GB → 1GB).
1-CPU 2-CPU
configuration configuration
6
12
4
10
2
8
4 7
1 1
5 9
2 3
6 11
3 5
FRONT
CPU2-DIMM 3
CPU2-DIMM 6
CPU2-DIMM 2
CPU2-DIMM 5
CPU2-DIMM 1
CPU2-DIMM 4
CPU2
CPU1
CPU1-DIMM 4
CPU1-DIMM 1
CPU1-DIMM 5
CPU1-DIMM 2
CPU1-DIMM 6
CPU1-DIMM 3
Mother board
REAR