Removal And Installation Of The Motherboard - Siemens SIMATIC Rack PC 840 Manual

4.8

Removal and Installation of the Motherboard

1. Open the housing as described in Section 4.1.
2. Remove all the modules from the slots (proceed as described in Section 4.4.2).
3. Remove the bus board as described in Section 4.7.
4. Remove all cables from the motherboard and note down their assignment.
5. Undo the screws and the three hex bolts on the motherboard. Undo the ten hex
screws at the ports on the outside of the housing.
6. Proceed in reverse order to refit the motherboard.
Figure 4-14 Fixing Screws on the Motherboard
The motherboard is available as a spare part without processor, memory modules
and bus board.
SIMATIC Rack PC 840 Manual
A5E00104826-03
Fixing screws on the motherboard
SIMATIC Rack PC 840 Expansions
4-19