Advantech ASMB-785

13 ASMB-785 User Manual
Chapter 1 Hardware Configuration
1.8.1.9 PCI Clock Selection (JPCICLK1)
JPCICLK1 is a jumper to select PCI slot clock between 66 or 33 MHz, and the default
setting is 33 MHz (2-3 closed).
1.9 System Memory
ASMB-785 has four 288-pin memory sockets for DDR4 unbuffered ECC/Non-ECC
1600/1866/2133/2400 MHz memory modules with maximum capacity of 64 GB (Max-
imum 16 GB for each DIMM).
1.10 Memory Installation Procedures
To install DIMMs, first make sure the two handles of the DIMM socket are in the
“open” position. i.e. The handles lean outward. Slowly slide the DIMM module along
the plastic guides on both ends of the socket, and then press the DIMM module right
down into the socket, until you hear a click. This is when the two handles have auto-
matically locked the memory module into the correct position of the DIMM socket. To
remove the memory module, just push both handles outward, and the memory mod-
ule will be ejected by the mechanism in the socket.
Table 1.13: PCI Clock Selection (JPCICLK1)
Function Jumper Setting
PCI Clock at 66 MHz
*PCI Clock at 33 MHz
* default setting
1-2 closed
123
2-3 closed
123
Note! ASMB-785 does NOT support registered DIMMs (RDIMMs).
Quantity of memory module installed
12 4
Socket / Color
DIMM A0 (Black) V
DIMM A1 (Blue) V V V
DIMM B0 (Black) V
DIMM B1 (Blue) V V