4 system memory, 1 overview, 2 memory configurations – Asus Z9PR-D12 User Manual
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Chapter 2: Hardware information
2.4
System memory
2.4.1
Overview
The motherboard comes with eight (for CPU1) and four (for CPU2) Double Data
Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets.
A DDR3 module has the same physical dimensions as a DDR2 DIMM but is
notched differently to prevent installation on a DDR2 DIMM socket. DDR3 modules
are developed for better performance with less power consumption.
2.4.2
Memory Configurations
You may install 1GB, 2GB, 4GB, 8GB, 16GB and 32GB* RDIMMs or 1GB, 2GB,
4GB and 8GB* UDIMMs or 8GB, 16GB and 32GB* LR-DIMMs into the DIMM
sockets using the memory configurations in this section.
• *Refer to ASUS Server AVL for the latest update.
• Start installing the DIMMs from slot A1 and C1 (light blue).
• Always install DIMMs with the same CAS latency. For optimum
compatibility, it is recommended that you obtain memory modules from the
same vendor.
1 CPU Configuration (must on CPU1)
A1
A2
B1
B2
C1
C2
D1
D2
1 DIMMs
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2 DIMMs
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3 DIMMs
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4 DIMMs
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5 DIMMs
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6 DIMMs
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7 DIMMs
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8 DIMMs
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