Sdram Dimm Orientation - Cisco 2600 Series Hardware Installation Manual

Appendix B Maintaining the Router
Figure B-7
Slot 0
Slot 1
Table B-4
DIMM 0
64 MB DIMM
128 MB DIMM —
64 MB DIMM
—
64 MB DIMM
128 MB DIMM 64 MB DIMM
128 MB DIMM 128 MB DIMM 256 MB

SDRAM DIMM Orientation

DIMMs are manufactured with polarization notches to ensure proper orientation and alignment holes to
ensure proper positioning.
To avoid damaging ESD-sensitive components, observe all ESD precautions. To avoid damaging the
Caution
system board, do not use excessive force when you remove or replace DIMMs.
OL-2171-02
SDRAM DIMM Locations in the Cisco 2691 Router
SDRAM DIMMs
SDRAM Configurations for Cisco 2691 Routers
DIMM 1 Total
— 64 MB
128 MB
64 MB DIMM 128 MB
128 MB DIMM 128 MB
128 MB DIMM 192 MB
192 MB
Figure B-8 shows the polarization notches and alignment holes on a DIMM.
Cisco 2600 Series Routers Hardware Installation Guide
Upgrading DRAM
B-11