Blinking Lights And Boot Error Codes; Processor Not Executing Code; Bios Recovery Code Unable To Find Valid Bios Recovery Image; Memory Module Error - HP EliteBook 850 G4 Maintenance And Service Manual

Blinking lights and boot error codes

The information below is from the white paper
Business PC models.
In some cases, when the host processor is not executing code or does not have the necessary code to drive
the display, light blink codes inform you of a problem.
Table 8-7 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

Processor not executing code

This computer has experienced a problem due to the failure of certain code to execute, resulting in a failed
startup of the processor. The issue could be related to the processor or the system board in the computer. If
the processor is socketed, be sure that the processor is seated correctly in the socket. If this error reoccurs,
refer to General troubleshooting steps on page
NOTE: The computer will attempt to notify you of this problem through a series of blinking lights. When you
attempt to turn on the computer from an "Off" or "Hibernated" state, lights associated with the
num lock keys will both blink once followed by a pause, and 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 startup. 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 this error reoccurs, refer to
on page 83.
NOTE: The computer will attempt to notify you of this problem through a series of blinking lights. When you
attempt to turn on the computer from an "Off" or "Hibernated" state, lights associated with the
num lock keys will both blink twice followed by a pause, and then continue in a repeating pattern.

Memory module error

This computer has experienced a memory initialization problem resulting in a failed startup. 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.
HP Business Notebook and Desktop PC F10 Setup, 2014
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)
83.
General troubleshooting steps
caps lock and
caps lock and
Additional information 143