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
Blinking lights and boot error codes on page 136
.
Table 7-5
Boot-error codes
Blink codes
Error
Amber battery light: blinks 1 Hz continuously
Embedded controller unable to load firmware
Caps/num lock lights = 1 blink
Processor not executing code
Caps/num lock lights = 2 blinks
BIOS recovery code unable to find valid BIOS recovery image
Caps/num lock lights = 3 blinks
Memory module error
Caps/num lock lights = 4 blinks
Graphics controller error
Caps/num lock lights = 5 blinks
System board error
Caps/num lock lights = 6 blinks
Intel Trusted Execution Technology (TXT) Error
Caps/num lock lights = 7 blinks
Sure Start unable to find valid BIOS Boot Block image
Caps/num lock lights = 8 blinks
Sure Start has identified a problem (Manual Recovery Policy Set)
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 7-6
System diagnostics failure codes and user actions
Test description
Failure description
Error
code
Suggested user actions
Startup Test
Memory module
200
Attempt to reseat the memory module and then repeat the test.
See the support document titled
Overview of How to
Troubleshoot Problems When a Computer Does Not Start Up or
Boot Properly
for details on troubleshooting issues related to the
memory module.
Startup Test
Hard Disk 1 SMART
301
Attempt to reseat the hard drive and repeat the test. The hard
drive may have failed.
Boot Device Manager
Boot device not found
3F0
Reset BIOS. Then reseat the hard drive and repeat the test.
BIOS Recovery
BIOS Recovery Occurred
500
This message indicates that BIOS recovery was completed
successfully. No further action is required.
86
Chapter 7 Troubleshooting guide