Installation guide

C-4 Cisco 4000 Series Installation Guide
Replacing Main Memory SIMMs
Figure C-2 Cisco 4500-M and Cisco 4700-M SIMM Locations
Replacing Main Memory SIMMs
SIMMs are manufactured with a polarization notch to prevent them from being installed
backward. Figure C-3 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 of
Figure C-1 and Figure C-2.
Main memory SIMM sockets
with correct SIMM orientation
Front of chassis
Motherboard
Shared-memory
SIMM and socket
H6665
System Flash memory 1
J5
J1
J6
System Flash memory 0
RxBoot Flash memory
Jumper in place enables
writing to Flash memory
Jump pins
1 and 2
Jump pins 1 and 2
ROM monitor
U78
NVRAM