Blinking Lights And Boot Error Codes - HP ZBook Power G10 Maintenance And Service Manual

DIMM—Dual in-line memory module
Daughterboard—Type of circuit board that plugs into or is attached to the system board or similar
expansion card to extend its features and services.
GPU–Graphics processor unit
GTS–General Troubleshooting Step
HDD–Hard drive
KB–Keyboard
LVDS–Low-Voltage Differential Signaling
MSG–Maintenance and Service Guide
mWS–Mobile Workstations
WS–Workstations
OS–Operating system
PC–Personal computer
POST–Power-On Self-Test
SSD–Solid-state drive
TSG–Troubleshooting Guide
UEFI–Unified Extensible Firmware Interface
WLAN–Wireless local area network
WWAN–Wireless wide area network

Blinking lights and boot error codes

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.
The following information is from the white paper http://h10032.www1.hp.com/ctg/Manual/c04685655.
Table 6-54 Blinking lights and boot error codes
Blink codes
Amber battery light: blinks 1 Hz continuously
Caps and num lk lights = 1 blink
Caps and num lk lights = 2 blinks
Caps and num lk lights = 3 blinks
Caps and num lk lights = 4 blinks
Caps and num lk lights = 5 blinks
Caps and num lk lights = 6 blinks
Caps and num lk lights = 7 blinks
128 Chapter 6 Troubleshooting guide
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