Cisco 4000 Series User Manual

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Hardware Installation Guide for Cisco 4000 Series Integrated Services Routers
OL-32185-02
Chapter 5 Install and Upgrade Internal Modules and FRUs
Install and Remove DDR DIMMs on Cisco 4400 or 4300 Series ISRs
DIMMs have a polarization notch on the mating edge to prevent incorrect insertion. Figure 5-21 shows
the polarization notch on a DIMM.
Figure 5-21 DIMM Showing Polarization Notch
Remove DIMM
To remove a DIMM:
Step 1 Read the “Safety Warnings” section on page 5-2 section and disconnect the power supply before you
replace any module.
Step 2 Remove the chassis cover. See the “Remove and Replace Chassis Cover” section on page 5-4.
Step 3 Locate the DIMM module. See the “Locate Internal and External Slots for Modules on Cisco 4451 ISR”
section on page 5-8 to find the DIMM sockets on the router.
1 Polarization notch
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Cisco 4000 Series Specifications

General

Category	Network Router
Product Type	Router
Form Factor	Rack-mountable
Connectivity Technology	Wired
Product Family	Cisco 4000 Series
Operating System	Cisco IOS XE
Dimensions	Varies by model
Weight	Varies by model
Model	Cisco 4000 Series
WAN Ports	Varies by model
LAN Ports	Varies by model
Storage	Varies by model
Redundancy	Varies by model
Security Features	Varies by model
Network Management	Varies by model
Data Link Protocol	Ethernet, Fast Ethernet, Gigabit Ethernet
Network/Transport Protocol	TCP/IP, UDP
Features	Varies by model
Interfaces	Varies by model
Models	Varies
Network Interfaces	Varies by model
Power Supply	Varies by model
Virtualization Support	Yes