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Figure 90: Installing or Replacing DRAM Modules
Installing a DRAM Module
J2320, J2350, J4350 and J6350 Services Routers support 256-MB and 512-MB DRAM
modules. Use only DRAM modules purchased from Juniper Networks specifically for
your model.
NOTE: If you are installing a second DRAM module, do not install it in a slot adjacent
to the first module. For example, if the first DRAM module is installed in slot 1, install
the second module in slot 3 (see Figure 88 on page 188 and Figure 89 on page 189).
To install a DRAM module:
1. Take the following steps if you have not already done so:
a. 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 the Getting Started Guide for your router.
b. Press and release the power button to power off the router. Wait for the
POWER LED to turn off.
c. Unplug the power cord or cable from the power source receptacle.
d. Remove the screws from the sides and top of the chassis that secure the
cover to the chassis.
e. Slide the cover off the chassis. (For J2320 and J2350 routers, see “Removing
and Replacing the Chassis Cover on J2320 and J2350 Routers” on page 176.)
2. Remove the DRAM module from its electrostatic bag.
3. Press the plastic ejectors on both sides of the DRAM slot to open it (see
Figure 90 on page 190).
4. Grasp the DRAM module by the edges, being careful not to touch any electrical
components.
190 ■ Replacing DRAM Modules
J2320, J2350, J4350, and J6350 Services Router Getting Started Guide