PCA-6005 User’s Manual 12
1.8 System Memory
The PCA-6005 has two sockets for 184-pin dual inline memory modules
(DIMMs). All these sockets use 2.5 V unbuffered double data rate syn-
chronous DRAMs (DDR SDRAM). are available in capacities of 128,
256, 512 and 1024 MB. The sockets can be filled in any combination with
DIMMs of any size, giving a total memory size between 128 MB and 2
GB. Use the following table to calculate the total DRAM memory within
your computer:
1.8.1 Supplementary information about DIMMs
Your PCA-6005 can accept DDR SDRAM memory chips without parity.
Also note:
• The PCA-6005 accpets PC-1600 (DDR200) or PC-2100 (DDR266)
DDR SDRAM, which can provide twice the performance than the PC-
133 SDRAM. The 168-pin SDRAM cannot be used.
• The PCA-6005 does not support ECC (error checking and correction).
Memory modules with 9 SDRAM chips/side support ECC; modules
with 8 chips/side do not support ECC.
1.8.2 Memory clock setting
The S1 dip switch is used to set the memory clock speed. If you are using
200 MHz DDR module, set S1 to OFF. If you are using 266 MHz DDR
module, set S1 to ON. S0 must be set at ON all the time.
Table 1.6: DIMM module allocation table
Socket Number 184-pin DIMM memory
1 (128, 256, 512 or 1024 MB)
2 (128, 256, 512 or 1024 MB)
