Installing a DRAM Module

To install a DRAM module onto the Routing Engine:

1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and connect the strap to the ESD point on the chassis, or to an outside ESD point if the router is disconnected from earth ground. For more information about ESD, see Preventing Electrostatic Discharge Damage.
2. Press and release the power button to power off the router. Wait for the POWER ON LED to turn off.
3. Loosen the thumbscrews at the rear of the chassis that secure the cover to the chassis.
4. Slide the cover off the chassis.
5. Remove the DRAM module from its electrostatic bag.
6. To open the empty DRAM slot, press the plastic ejectors on both sides (see Figure 38 or Figure 39).
7. Grasp the DRAM module by the edges, being careful not to touch any electrical components.
8. Pressing firmly on both ends, push the module into the slot until the ejectors return completely to the closed position (see Figure 38 or Figure 39).
9. Slide the cover onto the chassis.
10. Tighten the thumbscrews at the rear of the chassis that secure the cover to the chassis.
11. Press and release the power button to power on the router. Verify that the POWER ON LED lights steadily after you press the power button.

    You can view the DRAM configuration and verify that it was installed correctly by issuing the show chassis routing-engine command, described in the JUNOS Protocols, Class of Service, and System Basics Command Reference.