User`s guide

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4: Installing and Removing Customer-Replaceable Units

L1 Controller Display

The L1 controller, which is used to monitor and manage the base compute module of the

Silicon Graphics Prism platform, has a display located on the front panel as shown in

Figure 4-27. Every Silicon Graphics Prism platform module is factory- shipped with an

L1 controller display. Note that the optional TP900 mass storage module is an exception

and does not have an L1.

This section describes how to replace an L1 controller display panel for a base compute

module. (You can also use these instructions to replace an L1 controller display panel for

an XG2N, CPU expansion, or CMPX module.)

Figure 4-27 L1 Controller Display on Base Compute Module

To replace an L1 controller display, follow these steps:

1. Power off the system as described in “Powering Off Manually” on page 25.

2. Disconnect all of the cables at the rear of the module.

Warning: Components may be hot. To avoid injury, allow the components to cool

for approximately five minutes before you proceed with these instructions.

3. Remove the two screws that secure the module to the front rails of the rack. For

shelf-mounted modules, remove the two screws at the rear of the unit.

4. With shelf-mounted rails, use two people to slide the module out and move it to a

stable work surface. With optional slide rails, pull the module from the rack until it

is stopped by the safety latches.

L1 controller display