Reading The Power Supply Leds; Replacing A Power Supply; Table 6-1 Led Status And Power Supply Condition - Silicon Graphics Origin 350 User Manual

6: Installing and Removing Customer-replaceable Units

Reading the Power Supply LEDs

Replacing a Power Supply

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Use the LED located on the front (towards the top) of the power supply to read the
condition of the power supply. Table 6-1 shows the LED status and the power supply
condition the LED status indicates.
Table 6-1 LED Status and Power Supply Condition
LED Status Power Supply Condition Indicated
Off If your system has one power supply, it indicates that the power supply is not
receiving AC power. If your system has two power supplies, the LED on both
power supplies would be Off, and it would indicate that both power supplies
are not receiving AC power. Power supplies will not be receiving AC power
because either the module is not plugged into power, or a electrical fuse has
blown.
Amber Indicates a fault condition for one of the following reasons:
- In a system where you have two power supplies, one of the power supplies
is not receiving AC power.
- The voltage limit has been exceeded.
- The temperature limit has been exceeded.
- The current limit has been exceeded.
Blinking Green The power supply is receiving AC power, but the main primary DC power has
not yet activated.
Green The power supply is operating properly.
To replace a power supply, follow these steps:
1. If you are replacing a power supply in a module that has only one power supply (no
redundant power supply), power off the server system as described in the
"Powering the Server System On and Off" on page 53. If you are replacing a
redundant power supply, you do not have to power off your server system to
replace the power supply.
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 6-22A.
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