Specifications

Memory Replacement Instructions for the Network Processing Engine and Input/Output Controller 31
Installing New DRAM or Flash SIMMs
Figure 21 Releasing the SIMM Spring Clips
Step 6
When both ends of the SIMM are released from the socket, grasp the ends of the SIMM
with your thumb and forefinger and pull the SIMM completely out of the socket. Handle
the edges of the SIMM only; avoid touching the memory module or pins, and the metal
traces, or fingers, along the socket edge.
Step 7 Place the SIMM in an antistatic bag to protect it from ESD damage. You can use the
SIMMs that you remove in compatible equipment.
Step 8 Repeat Step 4 through Step 7 for the remaining SIMMs.
This completes the SIMM removal procedure.
Installing New DRAM or Flash SIMMs
The Flash SIMM on the I/O controller in located in socket U99; the DRAM SIMMs on the network
processing engine are located in the following sockets:
• U18, U25, U4, and U12 on the NPE-100 and the NPE-150 (see Figure 2 and Figure 3).
• U11, U25, U42, and U52 on the NPE-200 (see Figure 5).
Caution Handle SIMMs by the edges only; avoid touching the memory modules, pins, or traces
(the metal fingers along the connector edge of the SIMM). (See Figure 11.)
Polarization notch
DRAM SIMM
Pull the tabs away with
your thumbs, bracing your
forefingers against the
posts. Raise the SIMM
to a vertical position.
H2017
Faceplate edge of
the system card