Removing And Inserting Sdram Modules; Removing A Sdram Module; Inserting A Sdram Module - Juniper M10i Hardware Manual

4.

Removing and Inserting SDRAM Modules

The SDRAM installed on the Routing Engine provides storage for the routing and
forwarding tables and for other Routing Engine processes. The design of the Routing
Engine allows you to modify the SDRAM configuration by adding DIMM memory
modules to or removing modules from the Routing Engine board. The Routing Engine
contains from one to three 168-pin DIMMs.
To modify the SDRAM configuration, use the following procedures:

Removing a SDRAM Module

The SDRAM modules are located on the top of the Routing Engine. To remove a
SDRAM module, follow this procedure:
1.
2.
3.
4.
5.
6.
7.

Inserting a SDRAM Module

To insert a SDRAM module onto the Routing Engine, follow this procedure (see
Figure 51
The internal compact flash disk will now be the primary boot device.
You can verify correct boot order by issuing the
command. The output lists the devices mounted. The internal compact flash disk
is located at ad0 .
For more information about the command, see the JUNOS System Basics and
Services Command Reference.
Removing a SDRAM Module
Inserting a SDRAM Module
Place an electrostatic bag or antistatic mat on a flat, stable surface.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and
connect the strap to one of the ESD points on the chassis. Make sure the router
is attached to a proper earth ground. For more information about ESD, see
"Preventing Electrostatic Discharge Damage"
Remove the Routing Engine as described in
Engine" on page 121.
To release the SDRAM module, press the plastic ejectors on both sides of the
module.
Grasp the SDRAM module, being careful not to touch any electrical components
on the module, and firmly pull it out of the slot on the Routing Engine.
Place the SDRAM module on the antistatic mat or in the electrostatic bag.
Push the plastic ejectors to close the empty SDRAM module slot.
):
Chapter 13: Replacing Hardware Components
show system boot-messages
on page 129
on page 129
on page 140.
"Removing a Routing
Replacing Routing Engine Components
129