Previous Topic

Next Topic

System LEDs and internal health LED combinations

When the internal health LED on the front panel illuminates either amber or red, the server is experiencing a health event. Combinations of illuminated system LEDs and the internal health LED indicate system status.

The front panel health LEDs indicate only the current hardware status. In some situations, HP SIM may report server status differently than the health LEDs because the software tracks more system attributes.

System LED and color

Internal Health LED color


Processor failure, socket X

Red (flashing)

One or more of the following conditions may exist:

  • Processor in socket X has failed.
  • Processor X is not installed in the socket.
  • Processor X is unsupported.
  • ROM detects a failed processor during POST.


Amber (flashing)

Processor in socket X is in a pre-failure condition.

PPM failure, slot X (amber)

Red (flashing)

  • PPM in slot X has failed.
  • PPM is not installed in slot X, but the corresponding processor is installed.

DIMM failure, slot X (amber)

Red (flashing)

  • DIMM in slot X has failed.


Amber (flashing)

  • DIMM in slot X is in a pre-failure condition.

DIMM failure, all slots in one bank (amber)

Red (flashing)

No valid or usable memory is installed in the system.

Overtemperature (amber)

Red (flashing)

  • The Health Driver has detected a cautionary temperature level.
  • The server has detected a hardware critical temperature level.

Riser interlock (amber)

Red (flashing)

PCI riser cage is not seated.

Power converter module (amber)

Red (flashing)

Power converter module has failed.

Fan (amber)

Amber (flashing)

Redundant fan has failed.


Red (flashing)

The minimum fan requirements are not being met. One or more fans have failed or are missing.

SCSI configuration error (amber) *

Red (flashing)

SCSI cabling or terminator configuration is incorrect for SCSI backplane.

*This feature applies only to SCSI models.