Cisco Systems 3600 Series manual Replacing Cisco 3725 SDRAM, SDRAM DIMM Location and Orientation

Upgrading System Memory in Cisco 3725 Routers

Figure 1 Removing the Cover from a Cisco 3725 Router

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Step 8 When you are ready to replace the cover, see the “Replacing the Cisco 3725 Cover” section on page 16.

Replacing Cisco 3725 SDRAM

SDRAM DIMM Location and Orientation

Figure 2 shows the location of dynamic memory—SDRAM DIMM sockets 0 and 1—in a Cisco 3725 router.

DIMMs are manufactured with polarization notches to ensure proper orientation, and alignment holes to ensure proper positioning. Figure 3 shows the polarization notches and alignment holes on a DIMM. 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

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