Cisco Systems manual Replacing and Upgrading Dram SIMMs, RSP7000 Dram SIMMs

Reference Information

Replacing and Upgrading DRAM SIMMs

This section describes the steps for increasing the amount of DRAM by replacing up to four SIMMs that you obtain from an approved vendor. The system DRAM resides on up to four SIMMs on the RSP7000. The DRAM SIMM sockets are U4 and U12 for Bank 0, and U18 and U25 for Bank 1.

The default DRAM configuration is 16 MB (two 8-MB SIMMs in Bank 0). (See Figure 6.)

Note The total number of memory devices per SIMM differs for each manufacturer. The SIMMs in the following illustrations are generic representations of the actual DRAM SIMMs for your RSP7000. To be sure that you are using the correct SIMMs, refer to the specific part or product numbers indicated in the approved vendor list (AVL) and by your DRAM upgrade requirements.

Figure 6 RSP7000 DRAM SIMMs

Bus connector

DRAM		CPU
SIMMs
U4	U24	ROM monitor
	Bank 0	(boot ROM)
U12	U17	NVRAM

U18

Bank 1

U1 U25

H5364

Flash card	Flash SIMM Auxiliary port Console port
(PCMCIA) slot	holder

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 7 on page 31.) 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.

7000 Series Route Switch Processor (RSP7000) Installation and Configuration in the Cisco 7000 Series Routers 29