HP Business Notebook and Desktop PC F10 setup overview Technical White Paper Technical white paper

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Appendix E: Boot error codes
In some cases when the host processor is not executing or does not have the necessary code to drive the display, LED blink
codes inform the user of a problem. When HP Always On Remote Management is activated, boot error codes are sent to the HP
Touchpoint Manager administrator to assist in problem resolution and advising the user on appropriate next steps.
LED Sequence
Error
Amber Battery LED: blinks 1Hz
continuously
Embedded Controller unable to load
Firmware
CAPS / NUMLOCK LED’s = 1 Blink
CPU not executing code
CAPS / NUMLOCK LED’s = 2 Blinks
BIOS recovery code unable to find valid
BIOS recovery image
CAPS / NUMLOCK LED’s =3 Blinks Memory Module error
CAPS / NUMLOCK LED’s = 4 Blinks
Graphics Controller error
CAPS / NUMLOCK LED’s = 5 Blinks
System Board Error
CAPS / NUMLOCK LED’s = 6 Blinks
Intel Trusted Execution Technology (TXT)
Error
CAPS / NUMLOCK LED’s = 7 Blinks
Sure Start unable to find valid BIOS Boot
Block image
CAPS / NUMLOCK LED’s = 8 Blinks
Sure Start has identified a problem
(Manual Recovery Policy Set)
CPU not executing code
This computer has experienced a problem due to the failure of certain code to execute, resulting in a failed start-up of the
CPU. The issue could be related to the CPU or the system board in the machine. If the CPU is socketed, please ensure the CPU is
seated correctly in the socket. If this error reoccurs, a service event is required to identify the source of the error and take the
appropriate corrective action.
NOTE: The computer will attempt to notify the user of this problem through a series of blinking LEDs. When the user attempts
to turn on the computer from an “Off” or “Hibernated” state, LEDs associated with the CAPS and NUMLOCK keys will both blink
once followed by a pause, then continue in a repeating pattern.
BIOS recovery code unable to find valid BIOS recovery image
This computer has experienced a problem in locating a valid BIOS image, resulting in a failed start-up. This problem may be
resolved by placing a clean copy of the system BIOS on a USB key or in the appropriate hard drive directory and performing a
reboot. If you continue to experience this error and are unable to correct it using the process described in the link, a service
event is required to identify the source of the error and take the appropriate corrective action.
NOTE: The computer will attempt to notify the user of this problem through a series of blinking LEDs. When the user attempts
to turn on the computer from an “Off” or “Hibernated” state, LEDs associated with the CAPS and NUMLOCK keys will both blink
twice followed by a pause, then continue in a repeating pattern.
Failure - Memory Module Error
This computer has experienced a memory initialization problem resulting in a failed start-up. This issue may be related to the
memory modules in the computer. This problem may be resolved by ensuring that memory modules are correctly inserted and
seated. If this error reoccurs, a service event is required to determine the source of the error (memory modules or system
board) and take the appropriate corrective action.
NOTE: The computer will attempt to notify the user of this problem through a series of blinking LEDs. When the user attempts
to turn on the computer from an “Off” or “Hibernated” state, LEDs associated with the CAPS and NUMLOCK keys will both blink
three times followed by a pause, then continue in a repeating pattern.