Cisco 7000 Series Hardware Installation And Maintenance Manual page 193

Parts and Tools
In addition to the tools you need to remove and replace the RP, you will also need the following tools
and parts to replace SIMMs. If you need additional equipment, contact a service representative for
ordering information.
•
Four 16 MB x 9, 70 ns SIMMs from an approved vendor
•
Antistatic mat or pad for the removed RP
•
SIMM extraction tool manufactured by AMP, Inc. (AMP Part Number 382264-1). The toll-free
phone number for AMP product information is 800 526-5142.
Removing SIMMs
Because the SIMMs on the RP are not intended to be replaced often, if at all, the SIMM sockets do
not use the thumb tabs that are often used in PCs and other computer equipment. Each RP SIMM
socket has two metal retaining springs, one at each end. (See Figure 5-9.)When a SIMM is fully
seated in the socket, the retaining springs snap upward into the holes at the ends of the SIMM to lock
it in the socket. You need the AMP extraction tool to remove the SIMMs from this type of socket.
The extraction tool has an embossed tip specifically designed to depress the retaining spring while
wedging the SIMM out of the socket.
Figure 5-9 RP SIMM Sockets
Handle SIMMs by the card edges only. SIMMs are sensitive components that can be
Caution
shorted by mishandling. All four SIMM sockets must be filled, and all must contain SIMMs of the
same size (capacity) and speed. You cannot mix SIMMs of different sizes or speeds in the four
sockets.
Follow these steps to remove the existing 4 MB SIMMs:
Step 1 Turn OFF the system power and disconnect any devices connected to the RP console and
auxiliary ports.
Step 2 Follow the steps in the section "Removing CxBus Interface Processors" to remove the RP
from the slot and place it on an antistatic mat or foam pad.
Place the RP on an antistatic mat or pad, and ensure that you are wearing an antistatic
Step 3
device, such as a wriststrap. Position the RP so that the backplane edge is closest to you,
and the handle is away from you. The RP should be rotated 180 degrees from the orientation
shown in Figure 5-7.
Step 4 Locate SIMMs in sockets U35, U36, U58, and U59. You will remove the SIMM from the
socket closest to you first, then work backward to remove the remaining SIMMs.
Installing and Configuring Processor Modules
Metal retaining
spring
Maintenance 5-35