Memory - Siemens SIMATIC Box PC 820 Manual

2.3

Memory

If ECC submodules are not mixed up with ECC submodules, the memory will work
without ECC fuse or correction.
Organization
8Mx64
16Mx64
32Mx64
8Mx72
16Mx72
32Mx72
Modules with a chip size up to 128 Mbit are supported.
Replacing/Upgrading Memory Cards
How to Proceed
Please refer to the notes in Chapter 1 of the User's Guide supplied and read
carefully the ESD guidelines.
1. Switch off the device and separate from the mains.
2. Unscrew the housing and remove the cover (see Chapter 1.3.5).
3. Plug or unplug the DIMM submodules. The submodules can easily be removed
by pressing down the levers on the left and right of the base.
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.
Siemens Distributor
Box PC 820 / PC FI45 V2, Manual
A5E00051531-03
Size in MByte
64 SDRAM
128 SDRAM
256 SDRAM
64 SDRAM with ECC
128 SDRAM with ECC
256 SDRAM with ECC
Motherboard
Type Access-Time/
Frequency
PC100
PC100
PC100
PC100
PC100
PC100
2-5