Cisco 7500 Series Configuration Manual page 270

Upgrading or Replacing DRAM DIMMs on the RSP4 and RSP8
by your DRAM upgrade requirements, or to the Cisco part numbers on the DIMMs. DRAM upgrades
require the removal of the RSP4 or RSP8, so plan your DRAM upgrade to minimize your system
downtime.
Figure 9-4
1
MEMD SRAM
2
Bus connector
3 CPU
4
DRAM DIMMs (bank 0: bottom) U10
DRAM DIMMs (bank 1: top)
5
Console port
Each RSP4 DIMM socket has one plastic lever on one end, which is used to remove the DIMM from its
Note
socket.
To prevent memory problems, DRAM DIMMS must be 3.3V devices. Do not attempt to install
Caution
higher-voltage devices (such as those designed for the RSP2) in the RSP4 DIMM sockets.
Cisco 7500 Series Installation and Configuration Guide
9-6
RSP4 DRAM DIMM Locations
1
9
8
Chapter 9 Replacing DRAM on the Route Switch Processor
U13
U10
U5
R O
U T
E S
W I
T C
H P
R O
7
C E
S S
O R
2
6
5
6
Flash EPROM (ROMmon) U5
7
Auxiliary port
8 Flash memory SIMM holder
9
PC Card slot 0: bottom
U13 PC Card slot 1: top
(For Flash memory cards)
2
3
4
OL-5008-03 B0