Chapter 4: Installing Components

LEDLocation

Description

 

 

 

Power good

Top

This LED is lit whenever the power is turned on

LED (green)

 

 

 

 

 

Fault LED

Center

This LED is lit when a power rail has failed, even if

(orange)

 

the power supply is in a latched state. The only time

 

 

this LED is not lit during a fault condition is if the

 

 

3.3VSB is lost.

 

 

This LED is not lit when the server is turned off.

 

 

 

AC OK LED

Bottom

This LED is lit when the power supply module is

(green)

 

plugged into an active AC power source.

 

 

 

Replacing a power supply module

Your server uses as many as two hot-swappable redundant power supplies. If two power supply modules are installed and one of them fails, the other power supply module supports the server while you replace the failed module. You do not need to turn off the server or disconnect peripheral devices to replace a failed power supply module in this configuration. If only one power supply module is installed, the server must be turned off to replace it.

If you are adding a redundant power supply module to your server, you must update the FRU/SDR after the installation is complete. For more information, see “FRU/SDR Load utility” on page 54.

Warning

Caution

The power supply modules in this server contain no user-serviceable parts. Only a qualified computer technician should service the power supply modules.

Your server comes with 3-wire AC power cords fitted with the correct plug style for your region. If this plug does not match the connector on your surge protector, UPS, or wall outlet, do not attempt to modify the plug in any way. Use a UPS or wall outlet that is appropriate for the supplied AC power cords.

Because of chassis airflow disruption, a power supply module bay should never be empty for more than two minutes when the server power is on. Possible damage to system components could result if the bay is empty for more than five minutes.

If your server is configured with only one power supply module, an active fan blank must be installed in the second power supply module bay.

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