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Network Processing Engine and Network Services Engine Installation and Configuration
OL-4448-12
Chapter 9 Removing and Installing the NPE or NSE
Removing and Replacing the NPE or NSE
With the network processing engine or network services engine in the same orientation as the previous
procedure, install the DIMM in the DIMM socket as follows:
Step 1 Remove the new DIMM from its antistatic container.
Step 2 Hold the DIMM between your thumbs and forefingers. (See Figure 9-11.)
Note The 64-MB DIMM should be facing component-side-down.
Step 3 Align the notch on the DIMM with the connector. The DIMM only inserts one way.
Step 4 Insert the edge of the DIMM into the socket.
Note The SDRAM DIMM sockets on the NPE-175, NPE-225, and NPE-300 are parallel to the circuit
board. They are not tilted at an angle.
Caution When inserting the DIMM, use firm but not excessive pressure. If you damage a socket, you will have
to return the NPE or NSE to the factory for repair.
Step 5 Gently push the DIMM into the socket until the socket latches close over the ends of the DIMM. (See
Figure 9-12.) If necessary, rock the DIMM gently back and forth to seat it properly.
Figure 9-12 Inserting the DIMM
Step 6 When the DIMM is installed, check to see it is seated properly. If the DIMM appears misaligned,
carefully remove it and reseat it in the socket. Push the DIMM firmly back into the socket until first one
and then the other socket latch moves into place.
Step 7 Repeat Step 4 and Step 5 if you are replacing more than one DIMM.
This completes the DIMM replacement procedure. Go to the “Installing the NPE or NSE” section on
page 9-21.
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