Installing Memory Expansion Cards - Siemens SIMATIC RI45 PII Series Product Information Bulletin

4.3

Installing Memory Expansion Cards

Standard Memory There are three ECC-compatible slots for 72-bit DIMM memory expansion
submodules on the mother board. The current memory configuration is
64 MB. You can extend it up to a maximum of 384 MB. The memory comes
supplied with EDO RAM submodules.
Only one submodule must be fitted. You can fit a combination of EDO and
SDRAM submodules.
If ECC submodules are fitted in combination with non-ECC submodules, the
memory works without ECC backups or correction.
Caution
!
Risk of damage!
The electronic components on the printed-circuit boards are highly sensitive
to electrostatic discharge. When handling the boards or cards, you must
follow the guidelines for electrostatically-sensitive components.
Product Information Bulletin RI45 PII
C79000-Z7076-C814-02
Organisation Size in Mbytes
8Mx64 64
16Mx64 128
8Mx72 64
16Mx72 128
8Mx64 64
16Mx64 128
8Mx72 64
16Mx72 128
Expanding the RI45 PII
Type Access Time/
Frequency
EDO
EDO
EDO with ECC
EDO with ECC
SDRAM >=83MHz
SDRAM >=83MHz
SDRAM with ECC >=83MHz
SDRAM with ECC >=83MHz
60ns
60ns
60ns
60ns
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