Cisco Systems 3800 Series warranty Dimm Location and Orientation, Removing an Sdram Dimm

SDRAM DIMM Removal and Installation

DIMM Location and Orientation

The two SDRAM DIMM connectors are located on the motherboard and are identified as MEMORY 0 and MEMORY 1 on the Cisco 3825 router, and as MEM0 and MEM1 on the Cisco 3845 router. See Figure 51 and Figure 52 for DIMM locations.

DRAM DIMMs have a polarization notch on the mating edge to prevent incorrect insertion. Figure 53 shows the polarization notch on a DRAM DIMM.

Figure 53 DRAM DIMM Polarization Notch

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Polarization notch

Removing an SDRAM DIMM

To remove an SDRAM DIMM from the motherboard, follow these steps:

Step 1 Pull the latches away from the DIMM at both ends. This lifts the DIMM slightly. Lift the DIMM completely out of the connector. See Figure 54.

Figure 54 Removing a DRAM DIMM

2

1 1

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1

Release the latches

2

Remove the DIMM

Installing and Upgrading Internal Components in Cisco 3800 Series Routers

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