HP LH4r HP Netserver Service Handbook, Volume 2 - Mid - Page 25

DIMM Slot LED Blink Codes

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DIMM Slot LED Blink Codes System Board LED 0 LED 1 LED 2 LED 3 Processor Error Codes Processor errors are indicated by blinking patterns of the DIMM slot LEDs that alternate at 1 Hz, as listed below: ²= LED off O = LED on LED LED LED LED 01 2 3 ²O O O O ²²² O ²O O ²O ²² Processor Error Status Indications Error Condition Voltage Regulator Module for Primary CPU Bad Voltage Regulator Module for Secondary CPU Bad Action Check that primary voltage regulator module (VRM) is correctly seated. If problem persists, replace VRM. Check that secondary voltage regulator module (VRM) is correctly seated. If problem persists, replace VRM. ²O O ² O ²²O O O ²² ²²O O CPU Over Temperature CPU or Terminator Board Not Installed Check fan for function. Turn off system, wait 20-25 minutes for system to cool, and restart system. Install CPU in primary CPU slot and CPU or terminator board in secondary CPU slot. DIMM Status Error Codes When no processor error condition exists, the DIMM slot LEDs display the status of the DIMMs in the corresponding slots, as follows: • OFF: no DIMM installed • Flashes ON and OFF at 1 Hz in 50/50 proportion of time: uncorrectable error or inappropriate DIMM • Flashes ON and OFF at 1 Hz in 90/10 proportion of time: non-HP DIMM installed • ON: HP DIMM installed 17

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17
DIMM Slot LED Blink Codes
System Board
LED 0
LED 1
LED 2
LED 3
Processor Error Codes
Processor errors are indicated by blinking patterns of the DIMM slot LEDs that alternate at 1 Hz, as listed
below:
Processor Error Status Indications
²
= LED off
O = LED on
LED
LED
LED
LED
0
1
2
3
Error Condition
Action
²
O
O
O
O
²
²
²
Voltage Regulator Module for
Primary CPU Bad
Check that primary voltage regulator
module (VRM) is correctly seated. If
problem persists, replace VRM.
O
²
O
O
²
O
²
²
Voltage Regulator Module for
Secondary CPU Bad
Check that secondary voltage regulator
module (VRM) is correctly seated. If
problem persists, replace VRM.
²
O
O
²
O
²
²
O
CPU Over Temperature
Check fan for function. Turn off system, wait
20-25 minutes for system to cool, and
restart system.
O
O
²
²
²
²
O
O
CPU or Terminator Board Not
Installed
Install CPU in primary CPU slot and CPU or
terminator board in secondary CPU slot.
DIMM Status Error Codes
When no processor error condition exists, the DIMM slot LEDs display the status of the DIMMs in the
corresponding slots, as follows:
•
OFF:
no DIMM installed
•
Flashes ON and OFF at 1 Hz in 50/50 proportion of time:
uncorrectable error or inappropriate
DIMM
•
Flashes ON and OFF at 1 Hz in 90/10 proportion of time:
non-HP DIMM installed
•
ON:
HP DIMM installed