Blinking Light Codes; Post Error Messages - HP ZBook 14U G5 Maintenance And Service Manual

Blinking light codes

During startup, the computer may not boot properly. If this occurs, blinking light codes that will help identify
what is causing the issue. The computer uses the blinking lights below to identify a hardware component that
reports an error during startup. For more information, see
Table 8-5 Boot-error codes
Blink codes
Amber battery light: blinks 1 Hz continuously
Caps/num lock lights = 1 blink
Caps/num lock lights = 2 blinks
Caps/num lock lights = 3 blinks
Caps/num lock lights = 4 blinks
Caps/num lock lights = 5 blinks
Caps/num lock lights = 6 blinks
Caps/num lock lights = 7 blinks
Caps/num lock lights = 8 blinks

POST error messages

The Power-On Self-Test (POST) is a series of diagnostic tests that runs automatically when the computer is
powered on. If the POST encounters a problem, visual error messages are displayed before the operating
system starts. POST checks the following items to ensure that the computer system is functioning properly:
● Memory
● Processors
● BIOS
● Mass storage devices
● Fans
The following table describes errors encountered during HP PC Hardware Diagnostics (UEFI).
Table 8-6 System diagnostics failure codes and user actions
Test description
Startup Test
Startup Test
Error
Failure description code
Memory module 200
Hard Disk 1 SMART 301
Blinking lights and boot error codes on page
Error
Embedded controller unable to load firmware
Processor not executing code
BIOS recovery code unable to find valid BIOS recovery image
Memory module error
Graphics controller error
System board error
Intel Trusted Execution Technology (TXT) Error
Sure Start unable to find valid BIOS Boot Block image
Sure Start has identified a problem (Manual Recovery Policy Set)
Suggested user actions
Attempt to reseat the memory module and then repeat the test.
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details on troubleshooting issues related to the memory module.
Attempt to reseat the hard drive and repeat the test. The hard
drive may have failed.
http://h20566.www2.hp.com/
General troubleshooting steps
147.
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