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Cisco uBR7100 Series and Cisco uBR7100E Series Universal Broadband Router Hardware Installation Guide
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Chapter 6 Maintenance
Upgrading the SDRAM Memory Modules
Caution Handle the edges of the DIMM only; avoid touching the memory module, pins, or traces (the metal
fingers along the connector edge of the DIMM).
Figure 6-10 Handling the DIMM
Caution To prevent ESD damage when working with DIMMs: handle the DIMM by the card edges only, place a
removed DIMM on an antistatic mat, and store it in an antistatic container.
Step 5 Place the DIMM in an antistatic container to protect it from ESD damage.
Replacing the SDRAM DIMM
Note The network processor card contains two SDRAM slots for user-configurable system memory, DIMM 1
and DIMM 2.
• The amount of memory installed in slot DIMM 1 must be greater than or equal to the memory
installed in slot DIMM 2.
• Slot DIMM 2 is zero for the default memory configuration of 128 MB.
• Slot DIMM 0 is used only for packet memory and is fixed at 64 MB in the factory.
To replace the SRAM DIMM, do the following:
Step 1 Make sure that you are properly grounded.
Step 2 Remove the new DIMM from its antistatic container.
1 SDRAM DIMM
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