Replacing The Rom - Cisco 3600 Series Installation Manual

Replacing the ROM

Figure 5-18 Inserting Flash Memory SIMMs
View from front of chassis
It is normal to feel some resistance, but do not use excessive force on the SIMM and do not touch the
Caution
surface components to avoid damaging them.
Check the alignment of each SIMM to make sure that it is straight and that the alignment holes are lined
Step 4
up with the plastic socket guides.
When you finish replacing Flash memory SIMMs, and have installed all internal components, proceed
Step 5
to either of these sections:
•
•
Replacing the ROM
Cisco 3620, Cisco 3640, and Cisco 3660
To upgrade the router ROM software to a new ROM monitor version, you must replace the existing
ROM.
You will need the following tools:
•
•
•
Cisco 3600 Series Hardware Installation Guide
5-24
1. Insert the SIMM into the socket
at an angle from vertical.
2. Push the top of the SIMM
down and back.
3.
4.
Replacing the Cover on a Cisco 3620 or Cisco 3640 Router, page 5-30
Replacing the Cisco 3660 Mainboard Tray, page 5-33
ROM extraction tool or a small flat-blade screwdriver
Needlenose pliers
One 32-pin plastic leaded chip carrier (PLCC) for removing the ROM chip from the Cisco 3660
mainboard
The socket guide posts fit through
the holes in the SIMM.
The locking springs clip the back
of the SIMM.
Chapter 5 Installing Memory in the Router
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