1.10 System Memory
The top-left edge of the PCA-6175 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 or 128 MB. The sockets can be filled in any combination with DIMMs of any size, giving your PCA-6175 single board computer between 16 and 384 MB of memory. Use the following table to calculate the total DRAM memory within your computer:
Table 1-8: DIMM module allocation table
Socket number | 168-pin DIMM memory |
1 | (8, 16, 32, 64 or 128 MB) x 1 |
| |
2 | (8, 16, 32, 64 or 128 MB) x 1 |
3 | (8, 16, 32, 64 or 128 MB) x 1 |
1.10.1 Sample calculation: DIMM memory capacity
Suppose you install a 128 MB DIMM into your PCA-6175's socket 1, a 32 MB DIMM into socket 2, and you leave socket 3 empty. Your total system memory is calculated as follows, and is 160 MB:
Table 1-9: 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 | - | x 1 | 0 MB |
Total memory | | | 160 MB |
| | | |
