Cisco 3600 Series Upgrade Instructions page 12

Upgrading System Memory in Cisco 3725 Routers
Figure 1
Step 8 When you are ready to replace the cover, see the
Replacing Cisco 3725 SDRAM
SDRAM DIMM Location and Orientation
Figure 2
router.
DIMMs are manufactured with polarization notches to ensure proper orientation, and alignment holes to
ensure proper positioning.
SDRAM DIMMs are installed with the connector edge down and the polarization notches toward the left
side of the chassis.
Caution To avoid damaging ESD-sensitive components, observe all ESD precautions. To avoid damaging the
underlying mainboard, do not use excessive force when you remove or replace DIMMs.
Upgrading System Memory in Cisco 3700 Series Routers
12
Removing the Cover from a Cisco 3725 Router
shows the location of dynamic memory—SDRAM DIMM sockets 0 and 1—in a Cisco 3725
Figure 3
"Replacing the Cisco 3725 Cover" section on page
shows the polarization notches and alignment holes on a DIMM.
2
1
OL-5423-02
16.