HP Engage Go 10 Maintenance and Service Guide - Page 71

Interpreting POST diagnostic front panel lights and audible codes, Table 6-3

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Table 6-3 Interpreting POST diagnostic front panel lights and audible codes Category Major/minor code Description BIOS 2.2 The main area (DXE) of BIOS has become corrupted, and there is no recovery binary image available. 2.3 The embedded controller policy requires the user to enter a key sequence. 2.4 The embedded controller is checking or recovering the boot block. Hardware 3.2 The embedded controller has timed out waiting for BIOS to return from memory initialization. 3.3 The embedded controller has timed out waiting for BIOS to return from graphics initialization. 3.4 The system board displays a power failure (crowbar).* 3.5 The processor is not detected.* 3.6 The processor does not support an enabled feature. 3.7 The access panel/top cover has been opened since last boot. Thermal 4.2 A processor over temperature condition has been detected.* 4.3 An ambient temperature over temperature condition has been detected. 4.4 An MXM over temperature condition has been detected. System board 5.2 The embedded controller cannot find valid firmware. 5.3 The embedded controller has timed out waiting for the BIOS. 5.4 The embedded controller has timed out waiting for BIOS to return from system board initialization. 5.5 The embedded controller rebooted the system after a possible lockup condition had been detected through the use of a System Health Timer, Automated System Recovery Timer, or other mechanism. * Indicates hardware-triggered event; BIOS controls all other events. Interpreting POST diagnostic front panel lights and audible codes 63

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Table 6-3
Interpreting POST diagnostic front panel lights and audible codes
Category
Major/minor code
Description
BIOS
2.2
The main area (DXE) of BIOS has become corrupted, and there is no
recovery binary image available.
2.3
The embedded controller policy requires the user to enter a key
sequence.
2.4
The embedded controller is checking or recovering the boot block.
Hardware
3.2
The embedded controller has timed out waiting for BIOS to return
from memory initialization.
3.3
The embedded controller has timed out waiting for BIOS to return
from graphics initialization.
3.4
The system board displays a power failure (crowbar).*
3.5
The processor is not detected.*
3.6
The processor does not support an enabled feature.
3.7
The access panel/top cover has been opened since last boot.
Thermal
4.2
A processor over temperature condition has been detected.*
4.3
An ambient temperature over temperature condition has been
detected.
4.4
An MXM over temperature condition has been detected.
System board
5.2
The embedded controller cannot find valid firmware.
5.3
The embedded controller has timed out waiting for the BIOS.
5.4
The embedded controller has timed out waiting for BIOS to return
from system board initialization.
5.5
The embedded controller rebooted the system after a possible
lockup condition had been detected through the use of a System
Health Timer, Automated System Recovery Timer, or other
mechanism.
* Indicates hardware-triggered event; BIOS controls all other events.
Interpreting POST diagnostic front panel lights and audible codes
63