HP Netserver Service Handbook, Volume 2 - Mid

33
Processor Board LED Blink Codes
The processor board in the NetServer LD Pro contains LEDs that can indicate memory errors and processor
errors. When a memory error exists, the LEDs are either on, off, or flash repeatedly a constant memory error
code. The table below describes each of these codes. If the memory error indicates a failed DIMM, replace
the DIMM. When a processor error exists, the LEDs alternate between two codes (i.e., ON-OFF-OFF-OFF
and OFF-ON-ON-ON).
On = Steady green
Flash = Regular, slow flash (1 Hz)
Blink = Regular, fast flash
Double-blink = Irregular, double-flash
The diagnostic LEDs are located on the processor board, are labeled DIMM 0 through 3, and correspond to
DIMM sockets 0 through 3. The LEDs are visible from either side of the board, and can also be viewed
through the NetServer's rear panel cooling perforations.
Diagnostic LEDs:
DIMM 3
DIMM 2
DIMM 1
DIMM 0
Memory Error Codes
LED Code Definition Action
Off
No DIMM installed
or
N/A (normal)
Non-EEPROM DIMM installed Reseat the DIMM or
Move it to another socket or
Replace DIMM
On HP DIMM installed N/A (normal)
Flash
Inappropriate HP DIMM installed
or
Replace with appropriate HP DIMM or
Run Diagnostic Assistant to find the
problem
Hard memory error Run Diagnostic Assistant to find the
problem
Blink Non-HP DIMM installed N/A (normal for non-HP DIMM)
Double
Blink
Inappropriate non-HP-DIMM installed
or
Hard memory error
Replace with appropriate DIMM or
Run Diagnostic Assistant to find the
problem
Run Diagnostic Assistant to find the
problem
Hard memory error
Run Diagnostic Assistant to find the
problem