Installation guide

28 Upgrading Memory in Cisco 4000 Series Routers
Upgrading the ROM
Step 3 Begin with system Flash memory socket 0, as shown in Figure 13, Figure 14, or
Figure 15. Insert the SIMM at an angle, tilted toward the right side of the router (as
viewed from the front). Rock it into a vertical position (see Figure 23), using the
minimum amount of force required. When the SIMM is properly seated, the socket guide
posts fit through the alignment holes, and the connector springs click into place.
Step 4 Ensure that the SIMM is straight and that the alignment holes line up with the plastic
guides on the socket. It is normal to feel some resistance, but do not use excessive force
on the SIMM, and do not touch the surface components.
Step 5 If socket 0 is already filled, or to install a second Flash-memory SIMM, repeat Step 2
through Step 4 for system Flash memory socket 1.
If you are finished upgrading memory, continue with the section “Replacing the Component Tray”
later in this document.
Figure 23 Installing Flash-Memory SIMMs
Upgrading the ROM
To upgrade the ROM monitor on a Cisco 4500, Cisco 4500-M, Cisco 4700, or Cisco 4700-M router,
you must first remove the network processor modules. See the section “Removing Network
Processor Modules” earlier in this document. You can upgrade the boot ROMs on the Cisco 4000
and Cisco 4000-M without removing network processor modules.
To upgrade a ROM device, remove the old one and replace it with the new one.
Caution Correct placement of the ROM is crucial. If improperly positioned, the new ROM could
be damaged when you power ON the router.
Follow these steps to replace the ROM:
Step 1 Locate the ROM or ROMs on the motherboard, as shown in Figure 12, Figure 13,
Figure 14, or Figure 15.
Step 2 Gently remove the old ROM with an IC extraction tool or a small flat-blade screwdriver,
and set it aside.
H9409
1. Insert the SIMM into the socket
at an angle from vertical.
The socket guide posts fit through
the holes in the SIMM.
3.
The locking springs clip the back
of the SIMM.
4.
View from front of chassis
2. Push the top of the SIMM
down and back.