Gateway 7400 System Manual (PDF Version) - Page 76

Power supplies, Replacing a redundant power supply module

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Power supplies The Gateway 7400 Server uses a redundant power supply offering fault tolerance and hot-swap capability. This section describes replacing the power supply and also describes the procedure for hot-swapping a power supply module. Replacing a redundant power supply module If one of the two power supply modules fails, the other module can support the system while the failed module is replaced. An audible alarm indicates a failed module, and the corresponding power supply status LED will begin to flash. See "Front panel" on page 2 for the location and complete information on the function of the power supply status LEDs. You do not have to turn off the system to replace the failed module. To replace a failed power supply module: 1 Determine which power supply module has failed. The module power LED (on the back of the power supply modules) turns off when the module fails. 2 Loosen the thumbscrew that secures the power supply module to the back panel. 68 Replacing and Adding System Components

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68
Replacing and Adding System Components
Power supplies
The Gateway 7400 Server uses a redundant power supply offering fault
tolerance and hot-swap capability. This section describes replacing the power
supply and also describes the procedure for hot-swapping a power supply
module.
Replacing a redundant power supply module
If one of the two power supply modules fails, the other module can support
the system while the failed module is replaced. An audible alarm indicates a
failed module, and the corresponding power supply status LED will begin to
flash. See
“
Front panel
”
on page 2 for the location and complete information
on the function of the power supply status LEDs. You do not have to turn
off the system to replace the failed module.
To replace a failed power supply module:
1
Determine which power supply module has failed. The module power
LED (on the back of the power supply modules) turns off when the
module fails.
2
Loosen the thumbscrew that secures the power supply module to the back
panel.