Advantech PCA-6176 Series, Руководство пользователя

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14 PCA-6176 User's Manual
1.9 System Memory
The top-left edge of the PCA-6176 contains four sockets for 168-pin
dual inline memory modules (DIMMs). All four 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-6176
single board computer between 16 MB and 1 GB of memory. Use the
following table to calculate the total DRAM memory within your
computer:
Table 1-6: DIMM module allocation table
Socket number 168-pin DIMM memory
1 (16, 32, 64, 128 or 256 MB) x 1
2 (16, 32, 64, 128 or 256 MB) x 1
3 (16, 32, 64, 128 or 256 MB) x 1
4 (16, 32, 64, 128 or 256 MB) x 1
1.9.1 Sample calculation: DIMM memory capacity
Suppose you install a 128 MB DIMM into your PCA-6176's socket 1,
a 32 MB DIMM into socket 2 and 3, and you leave socket 4 empty.
Your total system memory is 192 MB, calculated as follows:
Table 1-7: DIMM memory capacity sample calculation
Socket number 168-pin DIMM memory Total memory
1 128 MB x 1 128 MB
2 32 MB x 1 32 MB
3 32 MB x 1 32 MB
4 - x 1 0 MB
Total memory 192 MB