NEC PH133 manual power on or off, Front panel status lights

power on or off.

Reset push-button switch: when pressed, resets the system and causes the power-on self test (POST) to run.

Front panel status lights:

Top light (power on/off): when lit, indicates the presence of DC power in the system. The light goes out when the power is turned off or the power source is disrupted.

Second light from top: when lit, indicates an IDE hard disk drive or SCSI device on channel A is in use.

Third light from top: when lit, indicates a SCSI device on channel B is in use.

Bottom light: when lit, indicates drive fault.

LCD panel: when enabled, displays system information.

Hot-docking bay status lights (one set per hard drive):

Left light: when on continuously, indicates drive present and power on.

Middle light: when flashing, indicates drive activity.

Right light: when on continuously, indicates drive fault.