Asus Z8PH-D12/IFB - Manual (Page 34)

2-16 Chapter 2: Hardware information
2.4.2 Memory Configurations
You may install 1 GB, 2 GB, 4 GB, or 8GB registered ECC/unbuffered ECC DDR3
DIMMs into the DIMM sockets using the memory configurations in this section.
Always install DIMMs with the same CAS latency. For optimum compatibility, it
is recommended that you obtain memory modules from the same vendor.
Memory population table
CPU 1 Configuration
DIMM_A2 DIMM_A1 DIMM_B2 DIMM_B1 DIMM_C2 DIMM_C1
1 DIMMs -- -- -- -- --
2 DIMMs -- -- -- --
3 DIMMs -- -- --
4 DIMMs -- --
6 DIMMs
CPU 2 Configuration
DIMM_D2 DIMM_D1 DIMM_E2 DIMM_E1 DIMM_F2 DIMM_F1
1 DIMMs -- -- -- -- --
2 DIMMs -- -- -- --
3 DIMMs -- -- --
4 DIMMs -- --
6 DIMMs