Asus Xeon 5U Rackmount Server AP1720-E1 - Manual (Page 26)

Chapter 2: Hardware setup 2-10
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.
PC-DL
PC-DL 184-Pin DDR DIMM Sockets
80 Pins
104 Pins
DDR1 DDR2 DDR3 DDR4
2.4.1 Memory configurations
* 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)
SOCKETS
Mode DIMM_A1 DIMM_A2 DIMM_B1 DIMM_B2
(blue) (black) (blue) (black)
Single-channel (1) Populated — — —
(2) — Populated — —
(3) — — Populated —
(4) — — — Populated
Dual-channel (1) Populated — Populated —
(2) — Populated — Populated
(3)* Populated Populated Populated Populated