Cisco Systems PRP-2=, PRP-1= manual MB MB Dimm U15 MEM-PRP-512= MB DIMMs U15 and U18, GB Dimm U15

Additional Configuration and Maintenance Tasks

Before proceeding, ensure that you have the proper tools and ESD-prevention equipment available. To upgrade SDRAM, you will install DIMMs in one or two banks (U15 and U18). Table 15 and Table 16 list the various available configurations of SDRAM DIMMs, the number of DIMMs for each configuration, and the SDRAM banks they occupy. Note which banks you should use, given the combinations of available DIMM sizes and the maximum SDRAM you require.

Note Depending on the configuration of your router and the protocols and features your system is running, you might require more than the default SDRAM provided. Upgrade SDRAM based on your requirements and the information in Table 15 and Table 16.

Table 15	Supported PRP-1 Route Memory Configurations
Total Route Memory		Cisco Product Number	DIMM Modules	SDRAM DIMM Sockets1
512 MB2		—	1 512-MB DIMM	U15
1 GB		MEM-PRP-512=3	2 512-MB DIMMs	U15 and U18
1 GB4		MEM-PRP-1G=	1 1-GB DIMM	U15
2 GB		2MEM-PRP-2G=	2 1-GB DIMMs	U15 and U18

1.Bank 1 (U15) must be populated first.

2.One 512-MB DIMM is the default SDRAM configuration for PRP-1.

3.Upgrades PRP to 1 GB by adding a second 512-MB DIMM.

4.1.5-GB configurations are not supported.

	Performance Route Processor Installation and Configuration Guide
74	OL-11656-01