
Memory Population for Optimal Performance
| # DIMMS | CPU | Channel 1 | Channel 2 | Channel 3 | Channel 4 | ||||
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| 4 DIMMs | CPU1 | 
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| 8 DIMMs | CPU1 | ||||||||
| 
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Memory Population for Optimal Performance
| # DIMMS | CPU | Channel 1 | Channel 2 | Channel 3 | Channel 4 | |||||
| 8 DIMMs | CPU1 | 
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| 
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| CPU2 | 
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| 
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| 
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| 16 DIMMs | CPU1 | |||||||||
| 
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| CPU2 | ||||||||||
| 
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| 
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Memory Population for Optimal Performance – For a Motherboard with
Four CPUs (CPU1, CPU2, CPU3 & CPU4) Installed
| # DIMMS | CPU | Channel 1 | Channel 2 | Channel 3 | Channel 4 | |||||
| 
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| 
 | CPU1 | 
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| 
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| 16 DIMMs | CPU2 | 
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| 
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| CPU3 | 
 | 
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| 
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| 
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| 
 | CPU4 | 
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| 
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| 
 | CPU1 | |||||||||
| 
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| 32 DIMMs | CPU2 | |||||||||
| 
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| CPU3 | ||||||||||
| 
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| 
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| 
 | CPU4 | |||||||||
| 
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DIMM Module Population Configuration
For memory to work properly, follow the tables below for memory installation:
Per Channel DIMM Populations Options
| DIMM Type | DIMM A | DIMM B | Max. MHz, | Max. MHz, | Max. GB/ | |
| 
 | 
 | 
 | 1.5V DIMMs | 1.35V DIMMs | Channel | |
| 
 | SR or DR | Empty | 
 | 
 | 
 | |
| Unbuffered | SR | SR | 1333 MHz | 1333 MHz | 8 GB | |
| DIMM | ||||||
| 
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| 
 | DR | DR | 
 | 
 | 
 | |
| 
 | SR or DR | Empty | 
 | 
 | 
 | |
| 
 | SR | SR | 1333 MHz | 1333 MHz | 16 GB | |
| Registered | DR | DR | 
 | 
 | 
 | |
| DIMM | 
 | 
 | 
 | |||
| 
 | 
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 | ||
| 
 | QR | Empty | 1333 MHz | 1066 MHz | 16 GB | |
| 
 | QR | QR | 1066 MHz | 800 MHz | 32 GB | |
| 
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Note 1: Due to OS limitations, some operating systems may not show more than 4 GB of memory.
