Removing The Cover - Cisco 7401ASR Installation And Configuration Manual

Replacing the SDRAM DIMM
When performing the following procedures, wear a grounding wrist strap to avoid ESD damage to the
Warning
card. Some platforms have an ESD connector for attaching the wrist strap. Do not directly touch the
system board with your hand or any metal tool, or you could shock yourself.
To replace or upgrade the SDRAM DIMM, follow these instructions:

Removing the Cover

The Cisco 7401ASR router cover fits tightly on the chassis. Follow these instructions to remove the
cover:
Power off the router by turning the power switch to the off position.
Step 1
Note
Step 2 Remove any cables from the Cisco 7401ASR router, including the power cables. For AC power supplies,
unplug the AC power cord from the power outlet. For DC power supplies, to ensure that all power is off,
locate the circuit breaker on the panel board that services the DC circuit, switch the circuit breaker to
the off position, and tape the switch handle of the circuit breaker in the off position.
Figure 1-8
1
Step 3 Remove the Cisco 7401ASR router from the rack, if it is rack-mounted.
Remove the four screws holding the cover to the chassis.
Step 4
Note
Insert a flat-blade screwdriver in each of the side cover removal slots.
Step 5
Push the screwdriver blade against the cover latches to release the cover, as shown in
Step 6
cover moves forward about one-quarter inch.
Cisco 7401ASR Installation and Configuration Guide
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After powering off the router, wait at least 30 seconds before powering it on again.
Removing the Screws and Releasing the Cover
1
2
ENH ANC ED
ATM
Cover screws
If needed, use a Phillips recess flat-head screw, M3.5 x 6-mm long, type B thread, steel with
black zinc coating, as a replacement.
Chapter 1 Overview and Parts Installation
2 Cover removal slot and flatblade screwdriver
Figure 1-8. The
OL-5419-01 B0