HP TC4100 - Manual (Page 11)

9
Chapter 1 Control and Indicators
Front Panel LED Indicators
Table 1-2. Component Indicators
Power Supply
Status LED NOTE: The installation of the HP Server Remote Management Card (optional
accessory) changes this LED behavior.
If the HP Server Remote Management Card is installed, this LED displays:
• Green (Steady): Normal operation. If two power supplies are installed, it indicates
redundancy.
• Red (blinking at 2 Hz blink rate): A subsystem has a critical problem preventing the
server from powering on.
• Amber (blinking 1 Hz blink rate): The power subsystem has lost redundancy since
the last boot, or a fan has failed in a power supply. Please see LED’s on power
supplies for further diagnosis (See Power Supply Indicator)
If the HP Server Remote Management Card is not installed, the LED behavior
observes the following changes:
• It does not indicate Predictive Failure; it only indicates the “good” and “failed”
states.
• It does not blink; it stays lit.
• There can be up to a 1-minute delay between the occurrence of an error condition
and the corresponding LED indication.
• There can be up to a 1-minute delay between the fixing of an error condition and
the corresponding LED indication.
System Status LED NOTE: The installation of the HP Server Remote Management Card (optional
accessory) changes this LED behavior.
If the HP Server Remote Management Card is installed, this LED displays:
• Green (steady): All components are OK
• Yellow (blinking at a rate of 1 Hz ): An internal component may fail soon (i.e.
system fan speed below threshold, predictive memory fail). Check the internal
diagnostic board or the system event log.
• Red (blinking at a rate of 2 Hz): An internal electrical component has failed or there
is a CPU or DIMM configuration error that prevents the system from booting.
Check the internal diagnostic board or the system event log.
If the HP Server Remote Management Card is not installed, the LED behavior
observes the following changes:
• It indicates the current states of the system fans. If the light is green, the fans are ok.
If the light is red, a fan has failed.
• It does not blink; it stays lit.
• There can be up to a 1-minute delay between the occurrence of an error condition
and the corresponding LED indication.
• There can be up to a 1-minute delay between the fixing of an error condition and
the corresponding LED indication.
LAN A LED The LAN A LED has three distinctive states:
• Blank: No LAN link has been established
• Green (steady): A LAN link has been established
• Green (flashing): There is LAN activity