SUPPLEMENTAL MATERIAL
Recommended Memory Configuration
This section explains the recommended DIMM population order rules for the C220 M3 server.
■All DIMMs must be DDR3 DIMMs.
■Do not mix:
—DIMMs with different sizes or clock rates in a channel
—RDIMMs and LRDIMMs
—ECC and
■There are blue and black DIMM slots. Populate blue slots first.
■When single- and
Many memory configurations are possible. For best results, follow Table 34 when populating DIMMs.
Table 34 | Recommended Memory Configurations1 |
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Total |
| CPU 1 DIMMs | CPU 2 DIMMs | DIMM Max | Total | |||
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| Blue Slots | Black Slots | Blue Slots | Black Slots | ||||
System | Operating | DIMMs in | ||||||
Bank 1 | Bank 2 | Bank 1 | Bank 2 | |||||
Memory | Speed | the | ||||||
(A1, B1, | (A2, B2, | (E1, F1, | (E2, F2, | |||||
Size |
| (MHz) | System | |||||
| C1, D1) | C2, D2) | G1, H1) | G2, H2) | ||||
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32 GB |
| 4x4 GB | — | 4x4 GB | — | 1600 | 8 | |
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| 2x8 GB | — | 2x8 GB | — | 1600 | 4 | |
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64 GB |
| 4x4 GB | 4x4 GB | 4x4 GB | 4x4 GB | 1600 | 16 | |
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| 4x8 GB | — | 4x8 GB | — | 1600 | 8 | |
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96 GB |
| 4x8 GB | 2x8 GB | 4x8 GB | 2x8 GB | 1600 | 12 | |
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| 3x16 GB | — | 3x16 GB | — | 1600 | 6 | |
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| 4x8 GB | 4x4 GB | 4x8 GB | 4x4 GB | 1600 | 16 | |
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128 GB |
| 4x8 GB | 4x8 GB | 4x8 GB | 4x8 GB | 1600 | 16 | |
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| 4x16 GB | — | 4x16 GB | — | 1600 | 8 | |
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192 GB |
| 4x16 GB | 2x16 GB | 4x16 GB | 2x16 GB | 1600 | 12 | |
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| 4x16 GB | 4x8 GB | 4x16 GB | 4x8 GB | 1600 | 16 | |
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256 GB |
| 4x16 GB | 4x16 GB | 4x16 GB | 4x16 GB | 1600 | 16 | |
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512 GB |
| 4x32 GB | 4x32 GB | 4x32 GB | 4x32 GB | 13332 | 16 | |
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Notes . . .
1.Rows marked in yellow indicate best performance.
2.32 GB LRDIMMs run in some cases at a maximum speed of 1333 MHz in 2DPC configurations, even though the specified DIMM speed is higher.
62 | Cisco UCS Cisco UCS C220 M3 |