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Cisco Systems 3600 Series manual Replacing CompactFlash Memory Cards, Installing SDRAM DIMMs

Models: 3745 Series 3725 Series 3600 Series

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Installing SDRAM DIMMs

Upgrading System Memory in Cisco 3725 Routers

Installing SDRAM DIMMs

To install SDRAM DIMMs, follow these steps:

Step 1 Attach an ESD-preventive wrist strap and ensure that it makes good contact with your skin. Connect the equipment end of the wrist strap to the metal back plate of the chassis, avoiding contact with the connectors.

Step 2 On the mainboard, locate the SDRAM DIMM sockets. (See Figure 2.)

Caution Handle the DIMM by the nonconnector edges only; do not press on the center. Handle carefully. DIMMs are ESD-sensitive components and can be damaged by mishandling.

Step 3 Insert the DIMM, ensuring that the polarization notches align correctly with the socket. Gently push into place until the socket guideposts fit through the alignment holes and the latches on both sides snap into place. (See Figure 4.)

Caution It is normal to feel some resistance when installing a DIMM, but do not use excessive force and do not touch the surface components.

Step 4 Ensure that each DIMM is straight (perpendicular to the socket).

Step 5 If necessary, repeat Step 3 and Step 4 to install a second DIMM.

Step 6 Proceed to either of the following as appropriate:

•“Replacing CompactFlash Memory Cards” section on page 15

•“Replacing the Cisco 3725 Cover” section on page 16

Replacing CompactFlash Memory Cards

To replace CompactFlash memory cards, follow these steps:

Step 1 Refer to Installing and Formatting Cisco 2691, Cisco 3631, and Cisco 3700 Series CompactFlash Memory Cards, available online at the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/cis3700/hw_inst/hw_notes/ index.htm

Step 2 Proceed to the “Replacing the Cisco 3725 Cover” section on page 16.

Upgrading System Memory in Cisco 3700 Series Routers

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Cisco Systems 3600 Series, 3725 Series, 3745 Series manual Replacing CompactFlash Memory Cards, Installing SDRAM DIMMs

Contents

Product Numbers MEM3725-64D=, MEM3725-128D=Upgrading System Memory in Cisco 3700 Series Routers Memory Capacities Memory Capacities, page Memory Configurations, pageSafety Recommendations, page Tools and Equipment Needed, page Recovering Compact Flash Memory and System Images, pageDynamic Memory Memory ConfigurationsTotal Memory Safety RecommendationsCompact Flash Memory DIMM or SODIMMNote SAVE THESE INSTRUCTIONS Safety WarningsWarning IMPORTANT SAFETY INSTRUCTIONS Warning DefinitionHinweis BEWAHREN SIE DIESE SICHERHEITSANWEISUNGEN AUF Attention IMPORTANTES INFORMATIONS DE SÉCURITÉRemarque CONSERVEZ CES INFORMATIONS Warnung WICHTIGE SICHERHEITSANWEISUNGENNota GUARDE ESTAS INSTRUÇÕES Advarsel VIKTIGE SIKKERHETSINSTRUKSJONERMerk TA VARE PÅ DISSE INSTRUKSJONENE Aviso INSTRUÇÕES IMPORTANTES DE SEGURANÇAWarning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement Safety with Electricity Tools and Equipment Needed Upgrading System Memory in Cisco 3725 RoutersPreventing Electrostatic Discharge Damage Removing the Cisco 3725 Router Cover SDRAM DIMM Location and Orientation Replacing Cisco 3725 SDRAMRemoving SDRAM DIMMs Figure 2 SDRAMM DIMM Locations in the Cisco 3725 RouterFigure 3 SDRAM DIMM Orientation in the Cisco 3725 Router Step 5 If necessary, repeat Step 3 and Step 4 for the other DIMM Step 6 Proceed to the “Installing SDRAM DIMMs” section on page“Replacing the Cisco 3725 Cover” section on page Installing SDRAM DIMMsReplacing CompactFlash Memory Cards “Replacing CompactFlash Memory Cards” section on pageReplacing the Cisco 3725 Cover Upgrading System Memory in Cisco 3745 Routers Replacing Connections to the RouterRemoving the Cisco 3745 Mainboard Tray OL-5423-02 Figure 6 Captive Screws on a Cisco 3745 RouterUpgrading System Memory in Cisco 3745 Routers Upgrading System Memory in Cisco 3700 Series RoutersFigure 7 Removing the Front Panel from a Cisco 3745 Router HingesFan tray SDRAM SODIMM Location and Orientation Replacing Cisco 3745 SDRAMFigure 9 SDRAMM SODIMM Location in the Cisco 3745 Router Removing SDRAM SODIMMsInstalling SDRAM SODIMMs Step 6 Proceed to the “Installing SDRAM DIMMs” section on pageMemory module “Replacing CompactFlash Memory Cards” section on page “Replacing the Cisco 3745 Mainboard” section on pageReplacing CompactFlash Memory Cards Step 7 Proceed to either of the following as appropriateReplacing the Cisco 3745 Mainboard Front panel Figure 13 Installing the Front Panel on a Cisco 3745 RouterAccess door HingesFigure 14 Captive Screws on a Cisco 3745 Router Replacing Connections to the RouterRecovering Compact Flash Memory and System Images Using the xmodem CommandObtaining Documentation Cisco.comCisco Technical Support Website Documentation FeedbackObtaining Technical Assistance Ordering DocumentationSubmitting a Service Request Definitions of Service Request SeverityObtaining Additional Publications and Information http//cisco.com/univercd/cc/td/doc/pcat