Asus AP1720-E1 User Guide - Page 26

2.4 System memory The motherboard comes with four Double Data Rate (DDR) Dual Inline Memory Module (DIMM) sockets. These sockets support up to 4GB system memory using 184-pin unbuffered ECC or non-ECC PC2700/ PC2100 DDR DIMMs, and allow up to 5.33GB/s data transfer rate. The following figure illustrates the location of the DDR DIMM sockets. 104 Pins 80 Pins DDR1 DDR2 DDR3 DDR4 PC-DL PC-DL 184-Pin DDR DIMM Sockets 2.4.1 Memory configurations Mode Single-channel Dual-channel DIMM_A1 (blue) (1) Populated (2) - (3) - (4) - (1) Populated (2) - (3)* Populated SOCKETS DIMM_A2 DIMM_B1 (black) (blue) - - Populated - - Populated - - - Populated Populated - Populated Populated DIMM_B2 (black) - - - Populated - Populated Populated * For dual-channel configuration (3), you may: • install identical DIMMs in all four sockets or • install identical DIMM pair in DIMM_A1 and DIMM_B1 (blue sockets) and identical DIMM pair in DIMM_A2 and DIMM_B2 (black sockets) 2-10 Chapter 2: Hardware setup