Cisco 4000 Series Upgrade Manual page 13

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
J6
J5
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
J1
Jump pins 1 and 2
Front of chassis
Memory Replacement Procedures
System Flash memory 1
System Flash memory 0
RxBoot Flash memory
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