Advantech PCA-6277-B, Руководство пользователя

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Chapter 1 Hardware Configuration
17
1.8 System Memory
The top-left edge of the PCA-6277-B contains four 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, 256 or 512 MB. The sockets
can be filled in any combination with DIMMs of any size, giving your
PCA-6277-B single board computer between 16 MB and 2 GB of
memory. Use the following table to calculate the total DRAM memory
within your computer:
Table 1-5: DIMM module allocation table
Socket number 168-pin DIMM memory
1 (16, 32, 64, 128, 256 or 512 MB) x 1
2 (16, 32, 64, 128, 256 or 512 MB) x 1
3 (16, 32, 64, 128, 256 or 512 MB) x 1
4 (16, 32, 64, 128, 256 or 512 MB) x 1
1.8.1 Sample calculation: DIMM memory capacity
Suppose you install a 128 MB DIMM into your PCA-6277-B's socket
1 and a 32 MB DIMM into sockets 2 and 3 and 4. Your total system
memory is 224 MB, calculated as follows:
Table 1-6: 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 32 MB x 1 32 MB
Total memory 224 MB