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December 10, 1999
For the Catalyst 8540 MSR, Catalyst 8510 MSR, Catalyst 8540 CSR, Catalyst 8510 CSR, and LightStream 1010 Flash memory SIMM (product number C85-SIMM-16MB=)
This document describes how to replace the Flash memory single in-line memory module (SIMM) in Catalyst 8540 MSR, Catalyst 8510 MSR, Catalyst 8540 CSR, Catalyst 8510 CSR, and LightStream 1010 systems. The Flash memory SIMM is located on the processor card.
This release note includes the following sections:
Electrostatic discharge (ESD) is a discharge of stored static electricity that can damage equipment and impair electrical circuitry. It occurs when electronic components are improperly handled and can result in complete or intermittent failures.
Follow these guidelines for preventing ESD damage:
 | Caution To avoid damaging the equipment, periodically check the resistance value of the antistatic strap. The measurement should be between 1 and 10 megohms (Mohms). |
The Flash memory SIMM stores the system image (system software). Cisco IOS software release 12.0(4a)W5(11a) and later releases require a minimum of 16-MB of contiguous boot Flash memory.
The switch router's route processor now ships by default with a 16-MB boot Flash SIMM. Earlier releases of the switch router shipped with an 8-MB boot Flash SIMM. The 8-MB boot Flash SIMM is not large enough to store system images for Cisco IOS software releases 12.0(4a)W5(11a) and later.
To check that your system has a 16-MB boot Flash SIMM, enter the show hardware EXEC command. You can also check to see if your system has a 16 MB boot Flash SIMM by entering the show version command. An example is shown below:
C8540# show version Cisco Internetwork Operating System Software IOS (tm) PNNI Software (cat8540m-WP-M), Version 12.0(4a)W5(11) SOFTWARE Copyright (c) 1986-1999 by cisco Systems, Inc. Compiled Fri 24-Sep-99 03:17 by Image text-base: 0x60010930, data-base: 0x60946000 ROM: System Bootstrap, Version 12.0(4.6)W5(13) RELEASE SOFTWARE C8540 uptime is 2 weeks, 4 days, 21 hours, 58 minutes System restarted by power-on System image file is "slot0:cat8540m-wp-mz.120-4a.W5.11" cisco C8540MSR (R5000) processor with 262144K bytes of memory. R5000 processor, Implementation 35, Revision 2.1 (512KB Level 2 Cache) Last reset from power-on 1 Ethernet/IEEE 802.3 interface(s) 12 ATM network interface(s) 1 Channelized T3 port(s) 507K bytes of non-volatile configuration memory. 16384K bytes of Flash PCMCIA card at slot 0 (Sector size 128K). 8192K bytes of Flash internal SIMM (Sector size 256K). Secondary is up Secondary has 262144K bytes of memory. C8540#
Replacing the Flash memory SIMM requires removing the processor card in the switch router chassis. The process to remove the processor card is essentially the same for each switch router chassis. It is recommended that you do the following:
You need these parts and tools:
Before you remove the Flash memory SIMM, follow these steps:
Step 1 The system image is lost when you replace the Flash memory SIMM. To ensure that you have a system image, copy the system image on a Flash PC Card in slot 0 or 1.
C8540# copy bootflash:cat8540m-wp-mz.120-4a.W5.11a slot0:cat8540m-wp-mz.120-4a.W5.11a
To accommodate the images, ensure that you have a 20 MB Flash PC Card module installed in the route processor before downloading these larger images.
As a precaution, you might want to back up your system image to an TFTP server using the copy flash tftp EXEC command.
Step 2 Enter the config-register 0x2102 global configuration command to change the configuration register to boot from the Flash PC card instead of the system-code SIMM (default).
Step 3 Enter the boot system slot0:filename global configuration command to specify the system image to boot on the Flash PC card.
Step 4 Enter the copy system:running-config nvram:startup-config privileged EXEC command to save the configuration changes to non-volatile RAM (NVRAM).
An example follows:
Switch(config)# config-register 0x2102 EHSA:Syncing confreg: 256 to secondary Switch(config)# boot system slot0:cat8540m-wp-mz.120-4a.W5.11a Switch(config)# end Switch# copy running-config startup-config
Step 5 Test the changes made in Steps 1 through 4 by restarting the switch router using the reload command.
To remove the Flash memory SIMM, follow these steps:
Step 1 Turn off the system. To channel ESD voltages to ground, do not disconnect the power cable.
Step 2 Attach an ESD-preventive wrist strap to your wrist and to an unpainted chassis surface.
Step 3 Disconnect all cables from the processor card.
Step 4 Use a flat-blade screwdriver to loosen the captive installation screws at the left and right sides of the processor card and then slide it out of the chassis.
Step 5 Grasp the left and right release levers between your thumbs and index fingers and simultaneously pull outward on the levers to release the processor card from the backplane connector. (See Figure 2.)
Step 6 Grasp the processor card faceplate with one hand and place your other hand under the carrier to support and guide the module out of the slot. Avoid touching the card.
Step 7 Carefully pull the processor card straight out of the slot, keeping your other hand under the carrier to guide it. Keep the module at a 90-degree orientation to the backplane.
Step 8 Place the processor card on an antistatic mat or bag with the edge connector away from you, and the faceplate toward you, as shown in Figure 3 and Figure 4.
Step 9 Locate the Flash memory SIMM on the processor card. (See Figure 3 for the location on a Catalyst 8540 processor. See Figure 4 for the location on a Catalyst 8510 and LightStream 1010 processor.)
Step 10 Place your index fingers on the sides of the SIMM socket and your thumbs on the spring clips, as shown in Figure 5.
Step 11 Press outward on the spring clips with your thumbs to release the Flash memory SIMM from the SIMM socket. (See Figure 5.)
Step 12 Tilt the Flash memory SIMM upward and remove it from the SIMM socket. Handle the edges of the SIMM only; avoid touching the memory modules, pins, or metal traces along the socket edge.
Step 13 Place the Flash memory SIMM in an antistatic bag to protect it from ESD damage.
This completes the procedure for removing the Flash memory SIMM. Proceed to the next section to install the new Flash memory SIMM.
To install Flash memory SIMMs, follow these steps:
Step 1 Place the processor card in the same orientation as in the previous procedure (with the edge connectors facing away from you and the faceplate toward you).
Step 2 Remove the new Flash memory SIMM from its antistatic bag.
Step 3 Hold the SIMM component side up with the connector edge (the edge with metal fingers) facing downward, as shown in Figure 6.
 | Caution Handle SIMMs by the card edges only. SIMMs are sensitive components that can be damaged by mishandling. |
Step 4 Make sure the polarization notch is at the right side, as shown in Figure 7, and insert the new Flash memory SIMM by sliding the end with the metal fingers into the SIMM socket at a slight angle.
| Caution When inserting the Flash memory SIMM, use firm but not excessive pressure. If you damage the SIMM socket, return the processor card to the factory for repair. |
Step 5 Gently rotate the SIMM down into place until the spring clips on both sides snap into place. (See Figure 8.)
Step 6 Reinstall the processor card in the chassis.
Step 7 Use a flat-blade screwdriver to tighten the captive installation screws at the left and right sides of the processor card.
Step 8 Reconnect all cables to the processor card.
Step 9 Turn on the system.
If the system fails to boot properly, or if the console terminal displays a checksum or memory error, make sure that the Flash memory SIMM is seated completely in the SIMM socket. If a Flash memory SIMM appears to protrude or rests in the socket at an odd angle, remove the SIMM and reinsert it. Then replace the processor card and reboot the system to check the installation again.
If after several attempts the system fails to restart properly, contact a customer service representative for assistance. Before you call, make note of any error messages, unusual LED states, or any other indications that might help solve the problem.
To restore the system image to the Flash memory SIMM, follow these steps:
Step 1 From ENABLE mode, enter the format bootflash: command.
Step 2 Copy the system image from the Flash PC Card to the Flash memory SIMM.
C8540# copy slot0:cat8540m-wp-mz.120-4a.W5.11a bootflash:cat8540m-wp-mz.120-4a.W5.11a
Step 3 Enter the config-register 0x2101 global configuration command to change the configuration register to boot from the Flash memory SIMM.
Step 4 Enter the boot system bootflash:filename global configuration command to specify the system image to boot on the Flash memory SIMM.
Step 5 Enter the copy system:running-config nvram:startup-config privileged EXEC command to save the configuration changes to non-volatile RAM (NVRAM).
An example follows:
Switch(config)# config-register 0x2101 EHSA:Syncing confreg: 256 to secondary Switch(config)# boot system slot0:cat8540m-wp-mz.120-4a.W5.11a Switch(config)# end Switch# copy running-config startup-config
Step 6 Test the changes made in Steps 1 through 5 by restarting the switch router using the reload command.
Replacing the Flash memory SIMM is now complete.
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Posted: Wed Dec 15 11:23:54 PST 1999
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