User`s guide

Removing and Replacing Power Supplies

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Removing and Replacing Power Supplies

Each module in a Silicon Graphics Prism system can contain one or two sled-mounted

power supplies (see Figure 4-20). For information on determining the operational status

of a power supply, see “Reading Power Supply Status LEDs” on page 129.

Note: The XG2N graphics module always requires two power supplies; no redundant

power is available. The system must be shut down prior to power supply replacement.

Figure 4-20 Power Supplies Location

To replace a power supply, follow these steps:

1. If you are replacing a power supply in an XG2N module, power off the Silicon

Graphics Prism platform as described in the section “Powering Off Manually” on

page 25. The XG2N module always uses two supplies. There is no redundant power

supply option available.

2. Remove the power supply to be replaced, as follows:

a. Swing open the bezel door located on the right side of the module front panel.

With a Phillips screw driver, unscrew the two screws on the screen cover as

shown in Figure 4-21A.

Power supplies