Dell PowerEdge R905 Hardware Owner's Manual (PDF) - Page 94

Table 3-2. Examples of Four-Processor Memory Configurations (continued) Total System Memory Memory Modules - Number, Memory Module Locations Size and Speed 24 GB Twenty-four 1 GB, 667 MHz A1, A2, A3, A4, A5, A6, B1, B2, B3, B4, B5, B6, C1, C2, C3, C4, C5, C6, D1, D2, D3, D4, D5, D6 32 GB Eight 4 GB, 667 MHz A1, A2, B1, B2, C1, C2, D1, D2 32 GB Eight 4 GB, 800 MHz* A1, A2, B1, B2, C1, C2, D1, D2 32 GB Sixteen 2 GB, 667 MHz A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, D1, D2, D3, D4 32 GB Sixteen 2 GB, 800 MHz* A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, D1, D2, D3, D4 32 GB Thirty-two 1 GB, 667 MHz 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 48 GB Twenty-four 2 GB, 667 MHz A1, A2, A3, A4, A5, A6, B1, B2, B3, B4, B5, B6, C1, C2, C3, C4, C5, C6, D1, D2, D3, D4, D5, D6 64 GB Eight 8 GB, 667 MHz A1, A2, B1, B2, C1, C2, D1, D2 64 GB Sixteen 4 GB, 667 MHz A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, D1, D2, D3, D4 64 GB Sixteen 4 GB, 800 MHz* A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, D1, D2, D3, D4 64 GB Thirty-two 2 GB, 667 MHz 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 96 GB Twenty-four 4 GB, 667 MHz A1, A2, A3, A4, A5, A6, B1, B2, B3, B4, B5, B6, C1, C2, C3, C4, C5, C6, D1, D2, D3, D4, D5, D6 * 2-GB 800 MHz and 4-GB 800 MHz memory modules will be supported when available 800-MHz memory modules are limited to a maximum of four modules per processor. If more than four modules are installed per processor, the system will downclock them to 667 MHz. 94 Installing System Components