Dell POWEREDGE M915 - Manual (Page 186)

186 Installing Blade Components
• Memory must be installed in the same configuration (symmetrically) for
both processors.
• If pairs of memory modules of different sizes are installed, the larger
capacity memory modules must be installed in the lower numbered slots.
• Memory sparing is supported if 16 memory modules are installed.
(Memory mirroring is not supported.)
Table 3-6 shows examples of supported memory configurations.
CAUTION: Memory module blanks must be installed in unoccupied memory
sockets to maintain proper cooling airflow.
Table 3-6. Examples of PowerEdge M805 Memory Configurations
Total
System
Memory Memory Modules -
Number and Size Memory Module Locations
4 GB Four 1 GB A1, A2, B1, B2
8 GB Eight 1 GB A1, A2, A3, A4, B1, B2, B3, B4
8 GB Four 2 GB A1, A2, B1, B2
12 GB Twelve 2 GB A1, A2, A3, A4, A5, A6, B1, B2, B3, B4, B5,
B6
16 GB Sixteen 1 GB A1, A2, A3, A4, A5, A6, A7, A8, B1, B2, B3,
B4, B5, B6, B7, B8
16 GB Eight 2 GB A1, A2, A3, A4, B1, B2, B3, B4
16 GB Four 4 GB A1, A2, B1, B2
24 GB Twelve 2 GB A1, A2, A3, A4, A5, A6, B1, B2, B3, B4, B5,
B6
32 GB Sixteen 2 GB A1, A2, A3, A4, A5, A6, A7, A8, B1, B2, B3,
B4, B5, B6, B7, B8
32 GB Eight 4 GB A1, A2, A3, A4, B1, B2, B3, B4
48 GB Twelve 4 GB A1, A2, A3, A4, A5, A6, B1, B2, B3, B4, B5,
B6
64 GB* Sixteen 4 GB A1, A2, A3, A4, A5, A6, A7, A8, B1, B2, B3,
B4, B5, B6, B7, B8