DIMM Support
The X14QBH+ motherboard supports up to 16 TB of ECC DDR5 RDIMM with speeds of up to 6400 MT/s in 64 slots.
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DDR5-6400 Memory Support for Intel® Xeon® 6700/6500-Series Processors with P-Cores |
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Type |
Ranks Per DIMM, Data Width (Stack) |
DIMM Capacity (GB)
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Speed (MT/s); Voltage (V); Slots per Channel (SPC) and DIMMs per Channel (DPC) |
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DRAM Density
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16 Gb |
24 Gb |
32 Gb |
1DPC/2SPC |
2DPC/2SPC |
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1DPC |
2DPC |
1DPC |
2DPC |
1DPC |
2DPC |
+1.1 V |
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RDIMM |
1Rx8 |
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6400, 6000, 5600, 5200, 4800 (DDR5-6400 rated RDIMMs only) |
5200, 4800 (DDR5-6400 rated RDIMMs only) |
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1Rx4 |
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2Rx8 |
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2Rx4 |
64 GB* |
64 GB*^ |
96 GB* |
96 GB*^ |
128 GB* |
128 GB*^ |
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3DS RDIMM |
4Rx4 |
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256 GB*^ |
256 GB*^ |
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8Rx4 |
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256 GB |
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The items marked with an asterisk (*) are supported in 1S/2S/4S systems. The items with circumflex (^) are supported in 8S systems. All others support 1S/2S only.
MRDIMM is supported with 1DPC configurations only.
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Intel Xeon 6700/6500-series processors with P-cores support up to 5200 MT/s speed in 2DPC configuration with 6400 MT/s DIMMs only. 5600 MT/s DIMMs are not supported.
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Intel Xeon 6700/6500-series processors with P-cores supports 1 DIMM per processor socket with the following DIMM configurations only: 16 GB/24 GB 1Rx8 and 32 GB/48 GB 1Rx8.
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Intel® Xeon® 6700-Series Processors with P-Cores DDR5 Recommended Memory Population Table (4 Processor and 64 DIMMs Installed, 2DPC) |
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DIMM Count |
Memory Population Sequence |
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4 Processors and 4 DIMMs |
CPU1: P1- DIMMA1 CPU2: P2-DIMMA1 CPU3: P3-DIMMA1 CPU4: P4-DIMMA1 |
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4 Processors and 16 DIMMs |
CPU1: P1-DIMMA1/P1-DIMMC1/P1-DIMME1/P1-DIMMG1 CPU2: P2-DIMMA1/P2-DIMMC1/P2-DIMME1/P2-DIMMG1 CPU3: P3-DIMMA1/P3-DIMMC1/P3-DIMME1/P3-DIMMG1 CPU4: P4-DIMMA1/P4-DIMMC1/P4-DIMME1/P4-DIMMG1 |
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4 Processors and 32 DIMMs |
CPU1: P1-DIMMA1/P1-DIMMB1/P1-DIMMC1/P1-DIMMD1/P1-DIMME1/P1-DIMMF1/P1-DIMMG1/P1-DIMMH1 CPU2: P2-DIMMA1/P2-DIMMB1/P2-DIMMC1/P2-DIMMD1/P2-DIMME1/P2-DIMMF1/P2-DIMMG1/P2-DIMMH1 CPU3: P3-DIMMA1/P3-DIMMB1/P3-DIMMC1/P3-DIMMD1/P3-DIMME1/P3-DIMMF1/P3-DIMMG1/P3-DIMMH1 CPU4: P4-DIMMA1/P4-DIMMB1/P4-DIMMC1/P4-DIMMD1/P4-DIMME1/P4-DIMMF1/P4-DIMMG1/P4-DIMMH1 |
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4 Processors and 48 DIMMs |
CPU1: P1-DIMMA1/P1-DIMMA2/P1-DIMMB1/P1-DIMMC1/P1-DIMMC2/P1-DIMMD1/P1-DIMME1/P1-DIMME2/P1-DIMMF1/P1-DIMMG1/P1-DIMMG2/P1-DIMMH1 CPU2: P2-DIMMA1/P2-DIMMA2/P2-DIMMB1/P2-DIMMC1/P2-DIMMC2/P2-DIMMD1/P2-DIMME1/P2-DIMME2/P2-DIMMF1/P2-DIMMG1/P2-DIMMG2/P2-DIMMH1 CPU3: P3-DIMMA1/P3-DIMMA2/P3-DIMMB1/P3-DIMMC1/P3-DIMMC2/P3-DIMMD1/P3-DIMME1/P3-DIMME2/P3-DIMMF1/P3-DIMMG1/P3-DIMMG2/P3-DIMMH1 CPU4: P4-DIMMA1/P4-DIMMA2/P4-DIMMB1/P4-DIMMC1/P4-DIMMC2/P4-DIMMD1/P4-DIMME1/P4-DIMME2/P4-DIMMF1/P4-DIMMG1/P4-DIMMG2/P4-DIMMH1 |
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4 Processors and 64 DIMMs |
CPU1: P1-DIMMA1/P1-DIMMA2/P1-DIMMB1/P1-DIMMB2/P1-DIMMC1/P1-DIMMC2/P1-DIMMD1/P1-DIMMD2/P1-DIMME1/P1-DIMME2/P1-DIMMF1/P1-DIMMF2/P1-DIMMG1/P1-DIMMG2/P1-DIMMH1/P1-DIMMH2 CPU2: P2-DIMMA1/P2-DIMMA2/P2-DIMMB1/P2-DIMMB2/P2-DIMMC1/P2-DIMMC2/P2-DIMMD1/P2-DIMMD2/P2-DIMME1/P2-DIMME2/P2-DIMMF1/P2-DIMMF2/P2-DIMMG1/P2-DIMMG2/P2-DIMMH1/P2-DIMMH2 CPU3: P3-DIMMA1/P3-DIMMA2/P3-DIMMB1/P3-DIMMB2/P3-DIMMC1/P3-DIMMC2/P3-DIMMD1/P3-DIMMD2/P3-DIMME1/P3-DIMME2/P3-DIMMF1/P3-DIMMF2/P3-DIMMG1/P3-DIMMG2/P3-DIMMH1/P3-DIMMH2 CPU4: P4-DIMMA1/P4-DIMMA2/P4-DIMMB1/P4-DIMMB2/P4-DIMMC1/P4-DIMMC2/P4-DIMMD1/P4-DIMMD2/P4-DIMME1/P4-DIMME2/P4-DIMMF1/P4-DIMMF2/P4-DIMMG1/P4-DIMMG2/P4-DIMMH1/P4-DIMMH2 |