Datasheet

Upgrading System Memory, Internal Flash Memory, and Boot ROM in Cisco 2600 Series Routers

OL-5474-01

Replacing the Boot ROM in Cisco 2600 Series Routers

Figure 11 Removing and Replacing the System-Code SIMM

Step 8 Position the new SIMM so that the polarization notch is located at the left end of the SIMM socket.

Caution To prevent damage, note that some flash memory SIMMs have the components mounted on the rear

side; therefore, when inserting the SIMM, always use the polarization notch as a reference and not

the position of the components on the SIMM.

Step 9 Insert the new SIMM by sliding the end with the metal fingers into the SIMM connector socket at

approximately a 90º angle to the system card. Gently rock the SIMM back into place until the latches on

both sides snap into place. Do not use excessive force, because the connector might break.

Step 10 Replace the router cover following the procedure in the “Closing the Chassis” section on page 19.

Replacing the Boot ROM in Cisco 2600 Series Routers

This section describes the procedure for replacing the boot ROM in Cisco 261x, Cisco 262x, Cisco 265x,

and Cisco 26xxXM routers.

Note The boot ROM in Cisco 2691 routers is not field replaceable. The ROM monitor in a Cisco 2691 router

can be upgraded by downloading a ROM monitor image. Refer to the online document ROM Monitor

Download Procedures for Cisco 2691, Cisco, 3631, Cisco 3725, and Cisco 3745 Routers.

10244

SIMM

Tab

SIMM connector

(on motherboard)