Asus ESC4000 ESC4000 configuration guide. - Page 16

2.2 Upgrading system memory The motherboard comes with eighteen (18) Double Data Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets. 9 8 76 5 4 3 2 1 10 11 12 13 14 15 16 17 18 1 DIMM_A3 10 DIMM_D3 2 DIMM_A2 11 DIMM_D2 3 DIMM_A1 12 DIMM_D1 4 DIMM_B3 13 DIMM_E3 5 DIMM_B2 14 DIMM_E2 6 DIMM_B1 15 DIMM_E1 7 DIMM_C3 16 DIMM_F3 8 DIMM_C2 17 DIMM_F2 9 DIMM_C1 18 DIMM_F1 You may install 1 GB, 2 GB, 4 GB and 8 GB registered DDR3 DIMMs with ECC or 1GB, 2GB and 4GB unbuffered DDR3 DIMMs with ECC 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. • For CPU1 configuraton, when installing only one DIMM, install it to the orange slots labeled DIMM_A1, DIMM_B1, or DIMM_C1. • For CPU2 configuraton, when installing only one DIMM, install it to the orange slots labeled DIMM_D1, DIMM_E1, or DIMM_F1. Order P/N 90-S000I05K0T 90-S000I05M0T 90-S000I0570T 90-S000I05H0T 90-S000I05I0T Description DDR3 1333 ECC REG 2G 240P SINGLE PACK DDR3 1333 ECC UNB 2G 240P SINGLE PACK DDR3 1333 ECC UNB 4G 240P SINGLE PACK DDR3 1333 ECC REG 4G 240P SINGLE PACK DDR3 1066 ECC REG 8G 240P 4RANK SINGLE PACK 2-4 Chapter 2: Components