Cisco Systems RSP7000 manual Removing SIMMs, MEM-RSP-24M

Reference Information

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 4 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 4 DRAM SIMM Configurations

DRAM Bank 0	Quantity	DRAM Bank 1	Quantity	Total DRAM	Product Names
U4 and U12	2, 8-MB SIMMs	U18 and U25	–	16 MB	MEM-RSP-16M
U4 and U12	2, 8-MB SIMMs	U18 and U25	2, 4-MB SIMMs	24 MB1	MEM-RSP-24M
U4 and U12	2, 16-MB SIMMs	U18 and U25	–	32 MB	MEM-RSP-32M(=)
U4 and U12	2, 32-MB SIMMs	U18 and U25	–	64 MB	MEM-RSP-64M(=)
U4 and U12	2, 32-MB SIMMs	U18 and U25	2, 32-MB SIMMs	128 MB	MEM-RSP-128M(=)

1.The 24-MB DRAM configuration is also available as an 8-MB upgrade to the standard 16-MB configuration, by adding DRAM-Product Number MEM-RSP-8M= (consisting of two, 4-MB DRAM SIMMs), for a total of 24 MB.

Caution To prevent DRAM errors, each DRAM bank used must contain no less than two SIMMs of the same type. You must install either two SIMMs in bank 0 or four SIMMs in two banks.

Removing SIMMs

Place removed SIMMs on an antistatic mat and store them in an antistatic bag. You can use the

SIMMs that you remove in compatible equipment.

Caution To prevent ESD damage, handle SIMMs by the card edges only.

Follow these steps to remove the existing SIMMs:

Step 1 Turn OFF the system power and follow the steps in the section “Removing the RSP7000” on page 18.

Step 2 Place the RSP7000 on an antistatic mat or pad, and ensure that you are wearing an antistatic device, such as a wrist strap. Position the RSP7000 so that the handle is away from you, and the edge connector is toward you; opposite of the position shown in Figure 3 on page 5.

Step 3 Locate SIMMs. The DRAM SIMMs occupy U4 and U12 in bank 0, and U18 and U25 in bank 1. (See Figure 3.)

307000 Series Route Switch Processor (RSP7000) Installation and Configuration in the Cisco 7000 Series Routers