HP Pro SFF 280 G9 Desktop PC Maintenance and Service Guide - Page 93

Interpreting POST diagnostic front panel lights and audible codes, continued, Table 7-3

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Table 7-3 Interpreting POST diagnostic front panel lights and audible codes (continued) Category Major/minor code Description 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 a hardware-triggered event; BIOS controls all other events. 86 Chapter 7 POST error messages

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Table 7-3
Interpreting POST diagnostic front panel lights and audible codes
(continued)
Category
Major/minor code
Description
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 a hardware-triggered event; BIOS controls all other events.
86
Chapter 7
POST error messages