User`s guide

Removing or Installing a Power Supply
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Removing or Installing a Power Supply
The SGI 1400 server comes standard with three power supplies. All three should be
plugged in to provide your system with high availability. If one power supply fails, the
server will continue to run uninterrupted.The SGI 1400server also comeswith a power
share board (PSB). The PSB supports one to three supplies. Never replace the power
shareboardwithapowerdistributionboard(whichisintendedtoworkinsystemsusing
one power supply only). Power share boards should only be replaced by trained
installers. Information on replacing PSBs is included in the SGI 1400 Server Family
Maintenance and Upgrades Guide.
Caution: Hazardous voltage, current, and energy levels are present inside the power
supply. There are no user-serviceable parts inside it; servicing should be done by
technically qualified personnel only.
Removing a Power Supply
1. Disconnect the AC power cable from the system.
2. Remove the four screws holding the power supply to the back of the chassis.
3. Using the flared, vertical edges as handles, slide the supply straight back from its
bay (Figure 5-4 shows an example).
Caution: You might feel initial resistance in sliding the power supply from its bay. Do
not tilt or twist the supply; this can damage components. Resistance is caused by the
supply disengaging from its 40-pin connector. Use even, steady force to remove the
supply.