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Upgrading Memory in Cisco 800 Series Routers
OL-4360-04
Upgrading the DRAM
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Table 7 identifies the DRAM upgrade kits available for Cisco 871, 876, 877, 878 routers.
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Locating the DRAM Slot
Figure 10 shows where the DRAM module can be installed on the router motherboard. The DRAM
socket location is similar on all Cisco 800 series routers.
Figure 10 Location of DRAM
Installing the DRAM
To upgrade the DRAM, you must install the dual in-line memory module (DIMM) on the router
motherboard.
Follow these steps to install a DIMM:
Step 1 If a DIMM is already installed in the slot, firmly push the slot guides away from the DIMM and down
toward the motherboard, as shown in Figure 11, until the DIMM pops out of the slot.
Table 6 Dynamic RAM Upgrade Kits for Cisco 801–806, 811–813, and 826–828, 831, 836, and
837 Routers
Description Cisco Part Number
4-MB DRAM module MEM800-4D=
8-MB DRAM module MEM800-8D=
16-MB DRAM module MEM820-16D=
Table 7 Dynamic RAM Upgrade Kits for Cisco 871, 876, 877, 878 Routers
Description Cisco Part Number
64-MB DRAM module MEM870-64D=
128-MB DRAM
module
MEM870-128D=
41863
ETHERNET 10 BASE T
TO HUB
TO PC
0
1
23
CONSOLE
Cisco 804
PHONE
12
CONSOLE
DRAM socket