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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.
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”
to find the DIMM sockets on the router.
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Polarization notch
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