Cisco 3600 Series Upgrade Instructions

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Upgrading System Memory in Cisco 3700 Series Routers
OL-5423-02
Upgrading System Memory in Cisco 3745 Routers
Replacing the Cisco 3745 Mainboard
To replace the mainboard, follow these steps:
Step 1 Place the chassis so that the empty mainboard slot faces you.
Step 2 With the ejector levers fully open, carefully insert the mainboard tray into the chassis slot until the
connector is engaged. (See Figure 12.)
Figure 12 Inserting the Mainboard into a Cisco 3745 Router
Step 3
Close the ejector levers to fully seat the mainboard connector.
Step 4 With a number 2 Phillips screwdriver, tighten the two captive retention screws, one on either side of the
mainboard.
Step 5 Hold the front panel straight out from the chassis, engage the hinges, and close the front panel. (See
Figure 13 parts 1 and 2.)
72136
Captive
retention
screw
Ejector levers
Captive
retention
screw

Cisco 3600 Series Specifications

General

Operating System	Cisco IOS
Series	3600
Type	Modular Router
Interfaces	Ethernet, Fast Ethernet, Serial, ISDN
Routing Protocols	RIP, OSPF, EIGRP, BGP, IS-IS
Redundancy	Optional redundant power supply
Management	CLI, SNMP, Telnet
Weight	Varies depending on the specific model
Power Supply	AC or DC, optional redundant power supply