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Installing and Upgrading Internal Components in Cisco 3800 Series Routers
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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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