Installation guide

Replacing Memory in Cisco 4000 Series Routers C-17

Replacing Boot ROMs in the Cisco 4000-M

Figure C-9 Boot ROM Locations

Step 6

Jumpers J7 and J8 must be set to designate the capacity of the Boot ROMs. For

the 8 MB boot ROMs used in Cisco IOS Release 10.2(8) and higher, short pins 2

and 3 on jumper J7 and on jumper J8. (See Figure C-9.) For the 4 MB boot ROMs

used in Cisco IOS releases prior to version 10.2(8), short pins 2 and 3 on jumper J7

and pins 1 and 2 on jumper J8. (See Figure C-9.)

If you have completed all memory upgrade procedures, proceed to the section “Replacing

Network Processor Modules” in the chapter “Conﬁguring the Cisco 4000 Series Chassis.”

Testing Your Boot ROM Installation

Test your installing by rebooting the system. When you power up a system in which one or

more of the boot ROMs was incorrectly inserted, the system will not boot into the ROM

monitor or the operating system mode.

If you suspect that your boot ROMs were inserted incorrectly, reopen the chassis, locate the

affected boot ROM and remove it, straighten its pins, reinsert the boot ROM, and try

booting the system again.

Caution The notch on the ROM must match the notch on the socket on the card. Installing

the components backward will damage them.

FW1

FW2

Boot ROMs

LED

H6202

8 MB boot ROMs 4 MB boot ROMs

Pin 1