Installation guide

Upgrading Memory in Cisco 4000 Series Routers 13
The Cisco 4000 Flash EPROM Card
Figure 7 Cisco 4700-M and Newer Cisco 4500-M Component Tray
The Cisco 4000 Flash EPROM Card
In the Cisco 4000 router only, Flash memory resides on a separate daughter card. In all other routers
in the Cisco 4000 series, Flash memory resides on the motherboard.
If you are upgrading Flash memory in a Cisco 4000 router to 8 or 16 MB by replacing the original
Flash EPROM card, or if you are upgrading main memory in a Cisco 4000 router, you must remove
the Flash EPROM card. Continue with the next section, “Removing the Flash EPROM Card.”
If you are upgrading Flash memory in a Cisco 4000 router from 2 to 4 MB by adding EPROMs to
the original daughter card, you do not need to remove the Flash EPROM card. Continue with the
section “Adding Memory to the Flash EPROM Card” later in this document.
If you are upgrading only shared memory in a Cisco 4000 router, you do not need to remove the
Flash EPROM card. Continue with the section “Removing Network Processor Modules” later in this
document.
If you are upgrading memory in any other router in the Cisco 4000 series, there is no Flash EPROM
card. Continue with the section “Removing Network Processor Modules” later in this document.
U63
U64
J6
U61
LEDs
Module
mounting
screws
Token Ring module
Dual serial module
Ethernet module
Module cutaway view
128-pin module connector
H6669
Module mounting
screw
Front of the chassi
s
Module handle
Module handle
Module handle
LED
U78
ROM monitor
J1