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Figure 9

Shared-memory

Motherboard

SIMM and socket

NVRAM

Jump pins

1 and 2

Replacing Main Memory SIMMs

SIMMs are manufactured with a polarization notch to prevent them from being installed backward.

Figure 10 shows the polarization notch and locations of the alignment holes on a main memory

SIMM card. The main memory SIMM cards are installed with the connector edge down and the

component side facing in, as shown in the upper right corner of Figure 8 and Figure 9.

Figure 10

Polarization notch

Cisco 4700-M and Newer Versions of the Cisco 4500-M Memory Component Locations

Main memory SIMM sockets

with correct SIMM orientation

U78

ROM monitor

Jumper in place enables

writing to Flash memory

Main Memory SIMM

Alignment holes

Connector edge

Upgrading Cisco 4500, Cisco 4500-M, Cisco 4700, and Cisco 4700-M Memory

Jump pins 1 and 2

Front of chassis

Memory Replacement Procedures

System Flash memory 1

System Flash memory 0

RxBoot Flash memory