Memory - Siemens SIMATIC RI 45 PIII Series Manual

2.3

Memory

If ECC submodules are mixed with non-ECC submodules, the memory will
work without an ECC algorithm or correction.
Modules with a chip size up to 128Mbit are supported.
Replacing / Please refer to the notes in Chapter 1 of the User's Guide supplied and read
Upgrading Memory
carefully the ESD guidelines.
Cards
1. Switch off the device and separate from the supply voltage.
How to Proceed
2. Unscrew the housing and remove the cover (it is not necessary to remove
3. Plug or unplug the DIMM submodules. The submodules can easily be
4. Make sure that the modules are correctly plugged in.
5. Reassemble the unit in reverse order.
Caution
!
Risk of short circuit!
The cards must be installed correctly, otherwise the motherboard or the card
might be destroyed.
Make sure that the contacts of the card and socket are on top of each other.
RI 45 PIII, Manual
C79000-G7076-C817-01
Organization Size in Mbytes
8Mx64 64
16Mx64 128
32Mx64 256
8Mx72 64
16Mx72 128
32Mx72 256
the two screws on top of the front, just release them).
removed by pressing down the levers on the left and right of the base.
Motherboard
Type Access
Time/Freq.
SDRAM PC100
SDRAM PC100
SDRAM PC100
SDRAM with ECC PC100
SDRAM with ECC PC100
SDRAM with ECC PC100
2-5