B-13
Cisco 2600 Series Routers Hardware Installation Guide
OL-2171-02
Appendix B Maintaining the Router
Upgrading DRAM
Figure B-9 Removing and Installing SDRAM DIMMs on the Cisco 2691
Step 4
Hold the DIMM by the edges with your thumb and index finger and lift it out of the socket, as shown in
step 1 of Figure B-9. Place the removed DIMM in an antistatic bag to protect it from ESD damage.
Step 5 If necessary, repeat Step 3 and Step 4 for the other DIMM.
Installing SDRAM DIMMs
Follow this procedure to install SDRAM DIMMs:
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.
Step 2 On the system board, locate the SDRAM DIMM sockets shown in Figure B-7.
Caution Handle DIMMs by the nonconnector edges only. DIMMs are ESD-sensitive components and can be
damaged by mishandling.
Step 3 Hold the DIMM with the polarization notch on the right, near the rear of the chassis, and with the
connector edge at the bottom.
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2
2
1
Locking spring clips
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