Cisco 7000 Series Hardware Installation And Maintenance Manual page 197

This section describes the steps for increasing the amount of DRAM by replacing up to four SIMMs
that you obtain from an approved vendor.
Figure 5-12 RSP7000 DRAM SIMMs
Bus connector
Flash card
(PCMCIA) slot
The SIMM sockets use the thumb tabs that are often used in PCs and other computer equipment.
Each RSP7000 SIMM socket has two metal retaining springs, one at each end. (See Figure 5-13.)
When a SIMM is fully seated in the socket, the retaining springs snap over the ends of the SIMM to
lock it in the socket.
Before proceeding, ensure that you have the proper tools and ESD-prevention equipment available.
To upgrade DRAM, you install SIMMs in one or two banks. Table 5-9 lists the various
configurations of DRAM SIMMs that are available. Note which banks are used given the
combinations of available SIMM sizes and the maximum DRAM you require. SIMMs must be 60 ns
or faster and no taller than one inch.
Note Depending on your router configuration, Cisco IOS Release 11.1(1) might require more than
16 MB of DRAM for your RSP7000. Upgrade your system DRAM based on your current
configuration and this potential requirement.
Table 5-9 RSP7000 DRAM SIMM Configurations
DRAM Bank 0 Quantity
U4 and U12 2 8-MB SIMMs
U4 and U12 2 8-MB SIMMs
U4 and U12 2 16-MB SIMMs
U4 and U12 2 32-MB SIMMs
U4 and U12 2 32-MB SIMMs
DRAM
SIMMs
U4
Bank 0
U12
U18
U1
U25
Flash SIMM Auxiliary port
holder
DRAM Bank 1
U18 and U25
U18 and U25
U18 and U25
U18 and U25
U18 and U25
Installing and Configuring Processor Modules
CPU
U24
ROM monitor
(boot ROM)
NVRAM
U17
Bank 1
Console port
Quantity Total DRAM
– 16 MB
1
2 4-MB SIMMs 24 MB
– 32 MB
– 64 MB
2 32-MB SIMMs 128 MB
Product Names
MEM-RSP-16M
MEM-RSP-24M
MEM-RSP-32M(=)
MEM-RSP-64M(=)
MEM-RSP-128M(=)
Maintenance 5-39