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Chapter 1
Product Overview
SDRAM Memory
Warning
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
SDRAM memory consists of three DIMMs (on the network processor card) that contain the packet and
system memory. By default, each chassis comes with 64 MB of fixed packet memory and 128 MB of
upgradable system memory. SDRAM system memory is upgradable to 256 MB; packet memory is fixed
at 64 MB.
For more information on the network processor, see the
For information about replacing the SDRAM, see the
section on page
For information on how to replace the SDRAM memory, refer to the following URL:
Note
http://www.cisco.com/univercd/cc/td/doc/product/core/7206/fru/memory/index.htm
Table 1-3
applicable, product numbers are for spares (to replace existing memory configurations) and for upgrades
(to upgrade the existing memory configuration to a larger value).
Table 1-3
Total SDRAM
Packet Memory SDRAM
64 MB
System Memory SDRAM
128 MB
192 MB
256 MB
1. Packet memory is fixed at 64 MB on the Cisco uBR7100 series routers.
2. This is the default memory configuration for all Cisco uBR7100 series routers.
The amount of memory installed in slot DIMM 1 must be greater than or equal to the amount of memory
Note
installed in slot DIMM 2. If desired, slot DIMM 2 can be zero.
Slot DIMM 0 is used exclusively for packet memory and is fixed at 64 MB in the factory.
OL-5916-01
6-11.
lists the SDRAM product numbers for both packet memory and system memory. Where
SDRAM DIMM Configurations
Memory Configuration
1
1 64 MB DIMM in slot DIMM 0
2
1 128 MB DIMM in slot DIMM 1
1 128 MB DIMM in slot DIMM 1 and
1 64 MB DIMM in slot DIMM 2
2 128 MB DIMMs; 1 in each slot
(DIMM 1 and DIMM 2)
Cisco uBR7100 Series and Cisco uBR7100E Series Universal Broadband Router Hardware Installation Guide
"Network Processor Card" section on page
"Upgrading the SDRAM Memory Modules"
Product Number
MEM-7120/40-64P=
MEM-7120/40-128S=
MEM-7120/40-192S (when ordering the
original configuration)
MEM-7120/40-64S= (to upgrade the default
configuration)
MEM-7120/40-256S (when ordering the
original configuration)
MEM-7120/40-128S= (to upgrade the default
configuration)
Field-Replaceable Units
1-16.
1-11
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Troubleshooting
