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This document describes how to install or replace the dynamic random-access memory (DRAM) single in-line memory module (SIMM) in Cisco 1600 series routers. You might need to upgrade the DRAM SIMM for some Cisco Internetwork Operating System (Cisco IOS) feature sets or if the router is storing large routing or spoofing tables.
The following tools are required to upgrade the router’s DRAM SIMM: • Number 1 Phillips screwdriver • One DRAM SIMM Table 1 lists the DRAM SIMMs available for Cisco 1600 series routers. Table 1 DRAM SIMMs for Cisco 1600 Series Routers Cisco Product Number Amount of DRAM...
Figure 2. Put the screws in a safe place. Figure 2 Removing the Screws from the Rear Panel Rear panel screws DO NOT INSTALL ANY WAN MODULE WITH POWER ON Installing or Replacing the DRAM SIMM in Cisco 1600 Series Routers...
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M O D U Y W A N LE W IT H PO W ER O N Proceed with the next section, “Installing or Replacing the DRAM SIMM.” 4 Installing or Replacing the DRAM SIMM in Cisco 1600 Series Routers...
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SIMM to the vertical position and remove it from the SIMM socket. (See Figure 5.) To prevent damage, do not push on the center of the DRAM SIMM. Handle the DRAM Caution SIMM carefully. Installing or Replacing the DRAM SIMM in Cisco 1600 Series Routers...
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Align the top and bottom sections of the router. Step 1 Step 2 Close the cover by slowly pressing the top and bottom sections together. (See Figure 6.) 6 Installing or Replacing the DRAM SIMM in Cisco 1600 Series Routers...
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In this example, the router has 10 MB of main memory—the memory stored in the DRAM SIMM (8 MB) plus the memory stored in the fixed memory chips (2 MB). Installing or Replacing the DRAM SIMM in Cisco 1600 Series Routers...
For service and support for a product purchased from a reseller, contact the reseller. Resellers offer a wide variety of Cisco service and support programs, which are described in the section “Service and Support” in the information packet that shipped with your chassis.
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CCO is not accessible, contact 800 553-6387, 408 526-7208, or cs-rep@cisco.com. This document is to be used in conjunction with the Cisco 1600 Series Router Installation and Configuration Guide and the NetBeyond Cisco 1600 Series Router Installation and Configuration Guide publications.
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Cisco Connection Online 10 Installing or Replacing the DRAM SIMM in Cisco 1600 Series Routers...