74 Netra 240 Server Service Manual • June 2004
Installing Memory Modules
Memory Configuration Rules
When you install memory, follow these configuration rules:
■ All memory must be installed on the system board as matched DIMM pairs,
where each DIMM in the pair shares the same characteristics.
■ All DIMM pairs on the system board must share the following characteristics:
■ Vendor
■ Type
■ Capacity
■ Speed
■ On a single-processor system board, install the first DIMM pair in the memory
bank next to the CPU. For example, on a single-processor system board, the CPU
is installed in the CPU0 slot. Therefore, you must install the first DIMM pair in
CPU0 DIMM Bank0 (see
FIGURE 5-2).
■ A dual-processor system board must have a minimum of one DIMM pair
installed in CPU0 DIMM Bank0 (see
FIGURE 5-2).
■ When installing additional memory, see TABLE 5-1 and TABLE 5-2 for the proper
installation order of the DIMM pairs.
TABLE 5-1 DIMM Pair Installation Order for a Single-Processor Server
DIMM Pair System Board DIMM Bank
First DIMM pair CPU0 DIMM Bank0
Second DIMM pair CPU0 DIMM Bank1
TABLE 5-2 DIMM Pair Installation Order for a Dual-Processor Server
DIMM Pair System Board DIMM Bank
First DIMM pair CPU0 DIMM Bank0
Second DIMM pair CPU1 DIMM Bank0
Third DIMM pair CPU0 DIMM Bank1
Fourth DIMM pair CPU1 DIMM Bank1