Dell PowerEdge systems 6300 User Manual page 20

1-4 Dell PowerEdge 6300 Systems User's Guide
The following controls and indicators are behind the external drive door on the sys-
tem's front panel:
The power button controls the output power delivered to the system board from the
power supply.
The green power indicator in the center of the power button lights up when the power
supply is turned on and the system is receiving direct current (DC) power.
NOTE: The power button is recessed into the system's front panel to prevent
accidentally turning off the computer and losing valuable data.
The following indicators are on the system's front panel (see Figure 1-1):
The green fan/temperature status indicator blinks amber when a fan failure is
detected or temperature is out of bounds.
The green power supply status indicator blinks amber if a fault is detected with
any of the power supplies or any system voltages.
The three indicator lights on each of the SCSI hard-disk drive carriers provide the fol-
lowing information (see Figure 1-2):
The green hard-disk drive online indicator lights up when the hard-disk drive is
receiving power.
The green hard-disk drive activity indicator lights up when data is being trans-
ferred to or from the hard-disk drive.
The amber hard-disk drive failure indicator blinks if a hard-disk drive failure is
detected.