Hardware Owner's Manual

Installing Blade Components 179
General Memory Module Installation Guidelines - PowerEdge M910
To ensure optimal performance of your system, observe the following general
guidelines when configuring your system memory:
•Memory modules m ust be installed in pairs , beginning with the first two
sockets in each set of memory modules. These sockets are marked by white
retention levers.
• The memory configuration for each processor must be identical.
• Memory modules must be identical in size, speed, and technology in
lock
– step pair (same colored levers).
• If quad-rank memory modules are mixed with single- or dual-rank
modules, the quad-rank modules must be installed in the sockets with the
white release levers.
• If pairs of memory modules of different sizes are installed, the larger
capacity memory modules must be installed in the lower numbered slots.
• Memory mirroring and memory sparing are supported only if 32 memory
modules are installed.
Table 3-2. Examples of PowerEdge M910 Memory Configurations
Total
Physical
Memory
Memory Modules –
Number and Type
Memory Module Locations
4 GB Four 1 GB A1, A2, B1, B2
8 GB Eight 1 GB A1, A2, B1, B2, C1, C2, D1, D2
16 GB Eight 2 GB A1, A2, B1, B2, C1, C2, D1, D2
32 GB Eight 4 GB A1, A2, B1, B2, C1, C2, D1, D2
64 GB Sixteen 4 GB A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, D1,
D2, D3, D4
96 GB Twenty-four 4 GB A1, A2, A3, A4, A5, A6, B1, B2, B3, B4, B5, B6, C1,
C2, C3, C4, C5, C6, D1, D2, D3, D4, D5, D6
128 GB Thirty-two 4 GB A1, A2, A3, A4, A5, A6, A7, A8, B1, B2, B3, B4, B5, B6,
B7, B8, C1, C2, C3, C4, C5, C6, C7, C8, D1, D2, D3,
D4, D5, D6, D7, D8
128 GB Sixteen 8 GB A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, D1,
D2, D3, D4