Cisco Systems 7500 Series manual Quantity Totals Product Numbers

Chapter 9 Replacing DRAM on the Route Switch Processor

Upgrading or Replacing DRAM DIMMs on the RSP4 and RSP8

Note Depending on your router configuration and the protocols and features your system is running, you might require more than the 32 MB of default DRAM for your RSP4, and more than the 64 MB of default DRAM for your RSP8. Upgrade your system DRAM based on your current configuration, this potential requirement, and the information in Table 9-2and Table 9-3.

Table 9-2	DRAM DIMM Configurations for the RSP4
Quantity		Totals	Product Numbers
One 32-MB DIMM		32 MB	MEM-RSP4-32M1
One 32-MB DIMM		32 MB	MEM-RSP4-32M=2
Two 32-MB DIMMs or one		64 MB	MEM-RSP4-64M=
64-MB DIMM3
One 128-MB DIMM		128 MB	MEM-RSP4-128M=
Two 128-MB DIMMs		256 MB	MEM-RSP4-256M=

1.The 32-MB DRAM configuration is the default for RSP4s shipped in a Cisco 7507, Cisco 7513, and Cisco 7576 router.

2.This DRAM product spare option assumes you already have one 32-MB DRAM DIMM installed in an RSP4 and want to upgrade to 64 MB of DRAM by adding a second 32-MB DRAM DIMM.

3.When using the MEM-RSP4-64M= Product Number to order spare DRAM, note that two 32-MB DIMMs are currently shipped. As DRAM supplies warrant, these orders may be fulfilled with one 64-MB DIMM in the future.

Table 9-3	DRAM DIMM Configurations for the RSP8
Quantity		Totals	Product Numbers
One 64-MB DIMM1		64 MB	MEM-RSP8-64M2
One 128-MB DIMM		128 MB	MEM-RSP8-128M=
Two 128-MB DIMMs		256 MB	MEM-RSP8-256M=

1.When using the MEM-RSP8-64M= Product Number to order spare DRAM, note that two 32-MB DIMMs are currently shipped. As DRAM supplies warrant, these orders may be fulfilled with one 64-MB DIMM in the future.

2.The 64-MB DRAM configuration is the default for RSP8s shipped in a Cisco 7507-MX and Cisco 7513-MX router. Order this DRAM if you already have 64MB of DRAM in one DIMM socket and want to upgrade to 128 MB of DRAM by adding 64 MB of DRAM in the other DIMM socket.

Caution To prevent system and memory problems when installing DRAM, the RSP4 and RSP8 DRAM DIMMS must be 3.3V devices. Do not attempt to install higher-voltage devices (such as those designed for the RSP2) in the RSP4 or RSP8 DIMM sockets.

To prevent system and memory problems, use the same size and type Cisco DIMM in each socket. If you have a redundant RSP in the system, the memory size and type on the redundant RSP must be the same as the memory size and type on the primary RSP.

Cisco 7500 Series Installation and Configuration Guide

9-8 OL-5008-03 B0