2-3
Themis Computer
Installation and Operation
Installation Procedures
4.
Proceed to the appropriate section to install or replace a
memory module
graphics card
PCI card
lithium bat-
tery
2.1.2
Memory Modules
The RES-32XEL supports up to six ECC registered DDR-266/200 (PC2100/1600)
SDRAM memory modules of different sizes, for a total of up to 12 GB installed in
184-pin DIMM sockets (see
).
The dual-channel memory bus can support full-duplex memory bandwidth transfers
of up to 4.27 GB/s. When installing memory, follow these rules:
• It is strongly recommended that you
do not mix memory modules
of different
speeds (2100 MHz and 1600 MHz, for example) and sizes.
• Make sure that the correct type of ECC DDR-266/200 (PC2100/1600)
SDRAM is being used. EDO SDRAM and PC100/133 are not supported.
• Both channels of a bank must be populated with memory to support the inter-
leaved memory design scheme of the system.
• Bank 1 must be filled before Bank 2; Bank 2 before Bank 3.
Caution:
Exercise extreme caution when installing or removing SDRAM memory
modules to prevent any possible damage.
Table 2-1.
Typical Memory Module Distribution
Bank
Channel
RDRAM
Total
Memory
Bank
Channel
RDRAM
Total
Memory
Bank 1
Channel A
256 MB
512 MB
Bank 1
Channel A
1 GB
4 GB
Channel B
256 MB
Channel B
1 GB
Bank 2
Channel A
Empty slot
Bank 2
Channel A
1 GB
Channel B
Empty slot
Channel B
1 GB
Bank 3
Channel A
Empty slot
Bank 3
Channel A
Empty slot
Channel B
Empty slot
Channel B
Empty slot
Содержание RES-32XEL
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