System Memory; Sample Calculation: Dimm Memory Capacity; Table 1-7: Dimm Module Allocation Table; Table 1-8: Dimm Memory Capacity Sample Calculation - Advantech PCA-6168 Manual

1.9

System Memory

The top-left edge of the PCA-6168 contains three sockets for 168-pin
dual inline memory modules (DIMMs). All three sockets use 3.3 V
unbuffered synchronous DRAMs (SDRAM). DIMMs are available in
capacities of 16, 32, 64, 128, or 256 MB. The sockets can be filled in
any combination with DIMMs of any size, giving your PCA-6168
single board computer between 16 MB and 768 MB of memory. Use
the following table to calculate the total DRAM memory within your
computer:

Table 1-7: DIMM module allocation table

Socket number
1
2
3

1.9.1 Sample calculation: DIMM memory capacity

Suppose you install a 128 MB DIMM into your PCA-6168's socket 1
and a 32 MB DIMM into sockets 2 and 3. Your total system memory
is 192 MB, calculated as follows:

Table 1-8: DIMM memory capacity sample calculation

Socket number
1
2
3
Total memory
16 PCA-6168 User's Manual
168-pin DIMM memory
(16, 32, 64, 128 or 256 MB) x 1
(16, 32, 64, 128 or 256 MB) x 1
(16, 32, 64, 128 or 256 MB) x 1
168-pin DIMM memory
128 MB
32 MB
32 MB
Total memory
x 1 128 MB
x 1 32 MB
x 1 32 MB
192 MB