HP Elite Dragonfly 13.5 Maintenance and Service Guide - Page 75

Blinking light codes, startup. For more information, see

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Table 6-6 Power button functions and lights and their descriptions (continued) Component Description If the computer stops responding and operating system shutdown procedures are ineffective, press and hold the power button. Front power light On: The computer is on. Blinking: The computer is in the Sleep state. Off: The computer is off. Front AC adapter and battery light White: The computer is connected to external power, and the battery is charged from 90% to 99%. Amber: The computer is connected to external power, and the battery is charged from 0 to 90%. Blinking amber: A battery that is the only available power source has reached a low battery level. When the battery reaches a critical battery level, the battery light blinks rapidly. By default, the critical battery level is defined in Power Options as 5%. Off: The battery is fully charged. Front hard drive light Blinking white: The hard drive is being accessed. Amber: HP 3D DriveGuard has temporarily parked the hard drive. Rear AC adapter light White: The computer is connected to external power. Off: The computer is not connected to external power. Blinking light codes During startup, the computer may not boot properly. If this occurs, blinking light codes can help identify the cause. The computer uses the following blinking lights to identify a hardware component that reports an error during startup. For more information, see Blinking lights and boot error codes on page 114. Table 6-7 Blinking light codes and what they mean Blink codes Error 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 Embedded controller unable to load firmware Processor not executing code BIOS recovery code unable to find valid BIOS recovery image Memory module error 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 Graphics controller error System board error Intel Trusted Execution Technology (TXT) Error Sure Start unable to find valid BIOS Boot Block image Caps and num lk lights = 8 blinks Sure Start has identified a problem (Manual Recovery Policy Set) 66 Chapter 6 Troubleshooting guide

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Table 6-6
Power button functions and lights and their descriptions
(continued)
Component
Description
If the computer stops responding and operating system shutdown procedures are
ineffective, press and hold the power button.
Front power light
On: The computer is on.
Blinking: The computer is in the Sleep state.
Off: The computer is off.
Front AC adapter and battery light
White: The computer is connected to external power, and the battery is charged from 90% to
99%.
Amber: The computer is connected to external power, and the battery is charged from 0 to
90%.
Blinking amber: A battery that is the only available power source has reached a low battery
level. When the battery reaches a critical battery level, the battery light blinks rapidly. By
default, the critical battery level is defined in Power Options as 5%.
Off: The battery is fully charged.
Front hard drive light
Blinking white: The hard drive is being accessed.
Amber: HP 3D DriveGuard has temporarily parked the hard drive.
Rear AC adapter light
White: The computer is connected to external power.
Off: The computer is not connected to external power.
Blinking light codes
During startup, the computer may not boot properly. If this occurs, blinking light codes can help identify the
cause.
The computer uses the following blinking lights to identify a hardware component that reports an error during
startup. For more information, see
Blinking lights and boot error codes
on page
114
.
Table 6-7
Blinking light codes and what they mean
Blink codes
Error
Amber battery light: blinks 1 Hz continuously
Embedded controller unable to load firmware
Caps and num lk lights = 1 blink
Processor not executing code
Caps and num lk lights = 2 blinks
BIOS recovery code unable to find valid BIOS recovery image
Caps and num lk lights = 3 blinks
Memory module error
Caps and num lk lights = 4 blinks
Graphics controller error
Caps and num lk lights = 5 blinks
System board error
Caps and num lk lights = 6 blinks
Intel Trusted Execution Technology (TXT) Error
Caps and num lk lights = 7 blinks
Sure Start unable to find valid BIOS Boot Block image
Caps and num lk lights = 8 blinks
Sure Start has identified a problem (Manual Recovery Policy Set)
66
Chapter 6
Troubleshooting guide