Removing And Replacing The Sdram Sodimm - Cisco 7304 Installation And Configuration Manual

Removing and Replacing the SDRAM SODIMM

Step 6 Gently slide the network services engine all the way into its chassis slot until you feel the connectors
seat with the router midplane. Push the locking levers to lock the network services engine in place.
Seat the network services engine in the router midplane by tightening its captive installation screws with
Step 7
a number 2 Phillips or a 3/16-inch flat-blade screwdriver.
The network services engine is not fully seated in the router midplane until you tighten its captive
Note
installation screws.
Step 8 If you removed power supplies from the router, replace the power supplies. (See the
Power and Powering Up the Router" section on page 4-19
7304 router.)
If you slid the front of the router out of the rack, slowly guide the router back into the rack.
Step 9
Use a 3/16-inch flat-blade screwdriver to tighten the screws that secure the router to the front mounting
Step 10
strips of the rack.
This completes the procedure for inserting the network services engine in a Cisco 7304 router.
For information on reconnecting the cables, go to the
Fiber Cables" section on page
page
DC-Input Power" section on page

Removing and Replacing the SDRAM SODIMM

This section explains how to remove and replace the SDRAM SODIMM main memory modules on the
network services engine. Other than the CompactFlash Disk, the SDRAM SODIMM is the only
physically replaceable memory type on the NSE-100.
Caution The DDR-SODIMMs on the NSE-150 motherboard are configured in a "butterfly" configuration,
meaning the SODIMMs are designed to not lay flat on the motherboard like the other components. The
DDR-SODIMMs should not be forced to lie flat on the board. Forcing the DDR-SODIMMs to lie flat on
the board can cause damage to the SODIMM or the NSE-150 motherboard.
These NSE-150 SODIMMs are also not field-replaceable.
The SDRAM SODIMM is the main memory module for the Route Processor on the NSE-100. The
SDRAM SODIMM stores the configuration and routing tables for non-IP traffic. Cisco IOS software
executes from main memory, and the Route Processor is responsible for forwarding all non-IP traffic and
analyzing routing protocols. The advantage of upgrading the SDRAM SODIMM is to allow the NSE-100
to establish more sessions with communicating devices. The SDRAM SODIMM might also need to be
replaced to correct a problem being caused by the SODIMM.
Use only Cisco-supported SDRAM SODIMMs.
Note
Cisco 7304 Network Service Engine Installation and Configuration
4-8
4-17, and the "Reconnecting AC-Input Power" section on page 4-19
"Attaching Multimode and Single-Mode Optical
4-15, the "Attaching the Mode-Conditioning Patch Cord" section on
4-20.
Chapter 4 Removing and Installing the NSE
"Reconnecting Input
when replacing a power supply in a Cisco
or the "Reconnecting
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