Cisco 7000 Series Hardware Installation And Maintenance Manual page 195

Installing New SIMMs
SIMMs are sensitive components that are susceptible to ESD damage. 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 5-11.)
Figure 5-11 Handling a SIMM
Caution Handle SIMMs by the card edges only. SIMMs are sensitive components that can be
shorted by mishandling.
Follow these steps to install the new SIMMs:
Step 1 With the RP in the same orientation as the previous procedure (with the backplane edge
closest to you), install the first SIMM in the socket farthest from you. Then work from front
to back, and install the last SIMM in the socket closest to you.
Remove a new SIMM from the antistatic bag.
Step 2
Hold the SIMM component side up, with the connector edge (the metal fingers) closest to
Step 3
you.
Hold the sides of the SIMM between your thumb and middle finger, with your forefinger
Step 4
against the far edge, opposite the connector edge. (See Figure 5-11.)
Tilt the SIMM to approximately the same angle as the socket and insert the entire connector
Step 5
edge into the socket.
When inserting SIMMs, use firm but not excessive pressure. If you damage a socket, you
Caution
will have to return the RP to the factory for repairs.
Gently push the SIMM into the socket until the retaining springs snap into the holes in the
Step 6
SIMM. If necessary, rock the SIMM gently back and forth to seat the SIMM properly.
Step 7 Repeat Steps 2 through 6 for the remaining SIMMs.
When all four SIMMs are installed, check all eight alignment holes (two on each SIMM),
Step 8
and ensure that the spring retainer is visible. If it is not, the SIMM is not seated properly. If
any SIMM appears misaligned, carefully remove it and reseat it in the socket. Push the
SIMM firmly back into the socket until the retainer springs snap into place.
Installing and Configuring Processor Modules
Maintenance 5-37