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Installing and Removing DIMMs, Removing a DIMM

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Installing and Removing DIMMs Chapter 7 Installing and Upgrading Internal Modules Installing and Removing DIMMs Cisco 1800 series fixed-configuration routers have 128 MB of DDR SDRAM installed on the system board. You can install an additional DIMM in the DIMM connector to expand system memory to a maximum of 384 MB. Before you remove or install a DIMM, remove the chassis cover as described in the "Removing the Chassis Cover" section on page 7-2. Caution When you remove or install DIMMs, always wear an ESD-preventive wrist strap, and ensure that it makes good contact with your skin. Connect the equipment end of the wrist strap to the metal part of the chassis. Caution Handle DIMMs by the edges only. DIMMs are ESD-sensitive components and can be damaged by mishandling. Removing a DIMM Follow these steps to remove a DIMM from the system board: Step 1 Step 2 Locate the DIMM on the system board. Figure 7-2 shows the location of the DIMM connector. Pull the latches away from the DIMM at both ends; pulling the latches away lifts the DIMM slightly. Now you can lift the DIMM out of the connector. See Figure 7-3. Figure 7-3 Removing a DIMM 3 2 1 103155 1 Release the latches 2 Remove the DIMM Step 3 Place the DIMM in an antistatic bag to protect it from ESD damage. Cisco 1800 Series Integrated Services Routers (Fixed) Hardware Installation Guide 7-4 OL-6425-03

Section	Page
Cisco 1800 Series Integrated Services Routers (Fixed) Hardware Installation Guide	1
Contents	3
Overview	17
Hardware Features	18
Product Serial Number Location	18
Cisco Product Identification Tool	18
Feature Summary	18
Memory	19
Power	20
LED Indicators	20
Integrated 802.11a/b/g Radio Module (Wireless Models Only)	21
Supported Cisco Radio Antennas (Wireless Models Only)	22
Chassis Ventilation	22
Real-Time Clock	22
Kensington Lock	23
Chassis Views	23
Cisco 1811 Chassis	25
Cisco 1812 Chassis	26
Interface Numbering	27
Specifications	28
Regulatory Compliance	29
Preinstallation Requirements	31
Safety Recommendations	32
Safety with Electricity	32
Preventing Electrostatic Discharge Damage	33
Additional Warnings for Wireless Routers	33
General Safety Guidelines for Wireless Routers	33
General Site Requirements	34
Power Supply Considerations	34
Site Environment	34
Wireless LAN Considerations	34
Site Configuration	35
Installation Checklist	35
Creating a Site Log	36
Inspecting the Router	37
Required Tools and Equipment for Installation and Maintenance	37
Chassis Installation Procedures	39
Setting Up the Chassis	39
Setting a Cisco 1800 Series Fixed-Configuration Router on a Desktop	40
Chassis Grounding	40
Mounting a Cisco 1800 Series Fixed-Configuration Router on a Wall	40
Installing the Chassis Ground Connection	41
Power, Cable, and Antenna Connection Procedures	43
Power Connections	43
Connecting Routers to AC Power	44
Connecting WAN and LAN Cables	44
Preparing to Connect to a Network	45
Ethernet Connections	46
ISDN BRI Connections	46
Ports and Cabling	46
Connection Procedures and Precautions	47
Connecting to a Console Terminal or Modem	47
Console and Auxiliary Port Considerations	48
Console Port Connections	49
Connecting to the Console Port	49
Auxiliary Port Connections	49
Connecting to the Auxiliary Port	50
Connecting the Radio Antennas to the Wireless Router	50
Power-Up and Initial Configuration Procedures	53
Powering Up Cisco 1800 Series Fixed-Configuration Routers	53
Checklist for Power Up	53
Power-Up Procedure	54
Verifying the Front Panel LED Indications	55
Verifying the Hardware Configuration	55
Configuring the Router	55
Initial Configuration Using Cisco Router and Security Device Manager	56
Initial Configuration Using the Setup Command Facility	56
Initial Configuration Using the Cisco CLI-Manual Configuration	59
Verifying the Initial Configuration	60
Completing the Configuration	61
Troubleshooting	63
Solving Problems	63
Troubleshooting the Power and Cooling Systems	64
Normal Indications	64
Fault Indications	64
Environmental Reporting Features	64
Troubleshooting Cables and Connections	65
Reading System LEDs	66
Reading Port and Connection LEDs	66
System Messages	68
Recovering a Lost Password	69
More Troubleshooting Help-Cisco Technical Assistance Center	69
Installing and Upgrading Internal Modules	71
Safety Warnings	71
Removing the Chassis Cover	72
Locating Modules	73
Installing and Removing DIMMs	74
Removing a DIMM	74
Installing a DIMM	75
Installing the Optional Inline Power Supply	75
Installing the Chassis Cover	76
Removing and Installing CompactFlash Cards	77
Preventing Electrostatic Discharge Damage	77
Removing a CompactFlash Memory Card	77
Installing a CompactFlash Memory Card	78

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7-4

Cisco 1800 Series Integrated Services Routers (Fixed) Hardware Installation Guide

OL-6425-03

Chapter 7

Installing and Upgrading Internal Modules

Installing and Removing DIMMs

Cisco 1800 series fixed-configuration routers have 128 MB of DDR SDRAM installed on the system

board. You can install an additional DIMM in the DIMM connector to expand system memory to a

maximum of 384 MB.

Before you remove or install a DIMM, remove the chassis cover as described in the

“Removing the

Chassis Cover” section on page 7-2

Caution

When you remove or install DIMMs, always wear an ESD-preventive wrist strap, and ensure that it

makes good contact with your skin. Connect the equipment end of the wrist strap to the metal part of the

chassis.

Caution

Handle DIMMs by the edges only. DIMMs are ESD-sensitive components and can be damaged by

mishandling.

Removing a DIMM

Follow these steps to remove a DIMM from the system board:

Step 1

Locate the DIMM on the system board.

Figure 7-2

shows the location of the DIMM connector.

Step 2

Pull the latches away from the DIMM at both ends; pulling the latches away lifts the DIMM slightly.

Now you can lift the DIMM out of the connector. See

Figure 7-3

Removing a DIMM

Step 3

Place the DIMM in an antistatic bag to protect it from ESD damage.

Release the latches

Remove the DIMM

103155