Siemens SIMATIC Rack PC 840 V2 Operating Instructions Manual page 67

Notice
When inserting the processor, ensure that the notches on the processor align with the
socket.
2. Apply some heat-conductive
Caution
The processor may overheat when the system is in operation!
The heat-conductive paste must be applied very evenly as a thin film!
3. Place heat sink on
4. Fix the heat sink into position
5. Plug in the fan cable
SIMATIC Rack PC 840 V2
Operating Instructions, Edition 05/2006, A5E00248055-04
paste to the processor
with the four screws: Screw the
screws into position diagonally
and tighten evenly, in order to
avoid tilting.
11.1 Removing and installing hardware components
Maintenance and service
11-13