Dell Force10 C150 Manual page 36

Step Task
In an AC power supply, the LEDs should be green.
4
If these LEDs are not lit green:
• Check that the unit is properly installed.
• Verify the power source.
• If the power supply cannot be verified, power off all modules and replace the unit.
The fan tray LED should be green (online). You should be able to hear the air flowing through the chassis.
5
If the fans are not operating properly or air is not flowing through the chassis:
• Power off all power supplies.
• Verify that the fan tray is properly installed.
• If the fan tray LED remains unlit, power down the unit, and replace the fan tray.
To power down a power supply or the entire C150 system:
Step Task
To power down a single power supply, toggle the switch to the OFF (left) position.
1
To power down the entire system, toggle the switches on all power supplies to the OFF position.
Unplug the power cord from the power receptacle on the front of the power supply.
2
Verify that the LEDs are unlit.
3
After you supply power to the system, the following should occur:
• The fan tray should be operating.
• The green (online) fan tray, RPM, and line card LEDs should be lit and remain lit as long as the system
is receiving power and is operational.
When you supply power to the C150, the system performs a series of power-on self tests. RPM and line
card LEDs blink as the diagnostic programs run. No user interaction is required at this point. Observe the
process on your console monitor. When the boot process is complete, the card LEDs remain online
(green) and the console monitor displays the Command Line Interface (CLI) prompt
page 37).
36 | Powering Up
(Figure 9-1 on