Cisco 7304 Installation Guide - Page 60

Removing and Replacing the SDRAM SODIMM Chapter 4 Removing and Installing the NSE Step 6 Step 7 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 a number 2 Phillips or a 3/16-inch flat-blade screwdriver. Note The network services engine is not fully seated in the router midplane until you tighten its captive installation screws. Step 8 Step 9 Step 10 If you removed power supplies from the router, replace the power supplies. (See the "Reconnecting Input Power and Powering Up the Router" section on page 4-19 when replacing a power supply in a Cisco 7304 router.) If you slid the front of the router out of the rack, slowly guide the router back into the rack. Use a 3/16-inch flat-blade screwdriver to tighten the screws that secure the router to the front mounting 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 "Attaching Multimode and Single-Mode Optical Fiber Cables" section on page 4-15, the "Attaching the Mode-Conditioning Patch Cord" section on page 4-17, and the "Reconnecting AC-Input Power" section on page 4-19 or the "Reconnecting DC-Input Power" section on page 4-20. 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. Note Use only Cisco-supported SDRAM SODIMMs. Cisco 7304 Network Service Engine Installation and Configuration 4-8 OL-3967-01