B-15
Cisco 2600 Series Routers Hardware Installation Guide
OL-2171-02
Appendix B Maintaining the Router
Replacing Flash Memory
Note
Cisco 2650 and Cisco 2651 routers support a maximum of 32 MB of Flash memory. The Cisco 2620
and Cisco 2621 can be upgraded to supp6rt a maximum of 32 MB of Flash memory when using both
the Cisco 2600 boot ROM version 12.2(6r) (supplied with Cisco part number
MEM2620-32FSBoot=) and either Cisco IOS Release 12.1(3)T or Cisco IOS Release 12.2T or later
Cisco IOS releases. The 32 MB Flash SIMM module is not supported on the Cisco 2610, Cisco 2611,
Cisco 2612, or Cisco 2612.
Note
For more information about the copy flash tftp command and other related commands, refer to the
Cisco IOS configuration and command reference publications. These publications are available on
the Documentation CD-ROM that accompanied your router, and on Cisco.com. You can also order
printed copies. See
“Obtaining Documentation” section on page xii
for ordering information.
Caution
It is critical that the correct voltage SIMM modules be installed in the Cisco 2600 series routers.
Using the incorrect memory will cause the system to malfunction and may cause damage to the
system board or memory card. For Flash memory requirements, see
Table B-5
.
Table B-5
Cisco 2600 Series Flash Memory Table
Router
Flash Memory Capacity
Flash Device
Cisco 2610
8- to 16-MB
5V SIMM
module
Cisco 2611
Cisco 2612
Cisco 2613
Cisco 2620
8- to 32-MB
Cisco 2621
Cisco 2650
Cisco 2651
Cisco 2610XM
16- to 48-MB
3.3V SIMM
module
Cisco 2611XM
Cisco 2620XM
Cisco 2621XM
Cisco 2650XM
Cisco 2651XM
Cisco 2691
32- to 128-MB
Compact FLASH