Advantech PCA-6186 User Manual
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1.8.1 Sample calculation: DIMM memory capacity
Suppose you install a 512 MB DIMM into your PCA-6186's socket 1 and
a 512 MB DIMM into sockets 2. Your total system memory is 1 GB, cal-
culated as follows:
a 512 MB DIMM into sockets 2. Your total system memory is 1 GB, cal-
culated as follows:
Total memory
1 GB
1.9 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. Then
press the DIMM module right down into the socket, until you hear a
click. This is when the two handles have automatically locked the mem-
ory 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.
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. Then
press the DIMM module right down into the socket, until you hear a
click. This is when the two handles have automatically locked the mem-
ory 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.
1.10 Cache Memory
Since the second-level (L2) cache has been embedded into the Intel®
socket 478 Pentium® 4/Celeron™ processor, you do not have to take care
of either SRAM chips or SRAM modules. The built-in second-level
cache in the processor yields much higher performance than the external
cache memories. The cache size in the Intel ® Pentium ® 4 processor is
512 KB. In the Celeron CPU, the cache size is 128KB.
socket 478 Pentium® 4/Celeron™ processor, you do not have to take care
of either SRAM chips or SRAM modules. The built-in second-level
cache in the processor yields much higher performance than the external
cache memories. The cache size in the Intel ® Pentium ® 4 processor is
512 KB. In the Celeron CPU, the cache size is 128KB.
Table 1.6:
DIMM memory capacity sample calculation
Socket number
184-pin DIMM memory
Total
Memory
Memory
1
512 MB x 1
512 MB
2
512 MB x 1
512 MB