Cisco 6400, Maintaining, Page: 23 / 52

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Cisco 6400 Hardware Installation and Maintenance Guide
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Chapter 5 Maintaining the Cisco 6400
Replacing an NRP Module
NRP-1 Memory Description
The default DRAM configuration is 64 MB, contained in two 32-MB SIMMs. The DRAM can be
increased to 128 MB by replacing them with two 64-MB SIMMs. The amount of DRAM required on the
NRP-1 module is determined by the number of routed and bridged sessions the NRP-1 is configured to
handle.
The default Flash configuration is 8 MB, but you can upgrade to a 16-MB Flash SIMM. The amount of
Flash memory required on the NRP-1 module is determined by the number and sizes of images and
configuration files stored in Flash memory.
To upgrade either DRAM or Flash memory on the NRP-1 module, you must purchase an upgrade kit
from Cisco Systems and replace the current SIMMs.
Note
You must use SIMMs obtained from Cisco Systems.
Removing an NRP-1 Module SIMM
To remove the SIMM from the Cisco 6400 chassis:
Step 1 Attach an ESD-preventive wrist strap between you and an unpainted chassis surface.
Step 2
Disconnect the signal and control cables from the NRP.
Step 3 Loosen the captive installation screws on the NRP module and remove the module from the chassis.
Step 4
Place the NRP module on an antistatic mat or pad. Position the NRP module so that the faceplate is away
from you, and the edge connector is toward you.
Step 5 Locate the SIMMs on the NRP module ( Figure 5-18 ).
Step 6
Release the spring clips from the SIMM that you wish to remove and lift the SIMM from the socket
(
Figure 5-19 ).
Step 7 When both ends of the SIMM are released from the socket, use your thumb and forefinger to grasp the
ends of the SIMM and pull the SIMM completely out of the socket. Handle the edges of the SIMM only;
avoid touching the memory module, pins, or metal traces (fingers) along the socket edge.
Step 8
Place the SIMM in an antistatic bag to protect it from ESD damage.