Cisco 3800 Series User Manual

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Installing and Upgrading Internal Components in Cisco 3800 Series Routers
OL-5975-04
SDRAM DIMM Removal and Installation
Figure 52 Component Locations on a Cisco 3845 Motherboard
SDRAM DIMM Removal and Installation
Cisco 3800 series routers ship with 256 MB of ECC DDR SDRAM. The two DIMM slots can be
upgraded with 128-MB, 256-MB, or 512-MB DIMMs to a maximum of 1024 MB. If only one SDRAM
DIMM is used, it can be installed in either DIMM connector.
Caution When you remove or install DIMMs, always wear 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 part of the
router.
Caution Handle DIMMs by the edges only. DIMMs are ESD-sensitive components and can be damaged
by mishandling.
1 PVDM3 6 AIM1
2 PVDM2 7 MEM0
3 PVDM1 8 MEM1
4 PVDM0 9 Jumper headers
5 AIM0 10 Power connector for fan tray assembly
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Cisco 3800 Series Specifications

General

Connectivity Technology	Wired
Models	Cisco 3825, Cisco 3845
Operating System	Cisco IOS
Routing Protocols	BGP, OSPF, EIGRP, RIP, IS-IS
Interfaces	Fast Ethernet, Gigabit Ethernet, Serial, ISDN BRI, Voice
WAN Interfaces	T1/E1, ISDN BRI, Serial
Security Features	Firewall, VPN, IPS, SSH
Voice Support	Yes
Network Management	SNMP, CLI
Product Type	Router
Data Link Protocol	Ethernet, Fast Ethernet, Gigabit Ethernet
Network/Transport Protocol	TCP/IP
Features	Quality of Service (QoS)
RAM	256 MB
Flash Memory	64 MB
Product Series	Cisco 3800 Series