MSI MEG Unify-X Z690 - Onboard LEDs; EZ Debug LED; Debug Code LED Information

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Onboard LEDs
EZ Debug LED
These LEDs indicate the debug status of the motherboard.
CPU
DRAM
VGA
BOOT
or fail.
Onboard LEDs
Debug Code LED
Debug Code LED
The Debug Code LED displays progress and error codes during and after POST. Refer
to the Debug Code LED table for details.
Hexadecimal Character Table
Hexadecimal 0 1 2 3 4 5 6 7 8 9 A B C D E F
Debug Code
LED display
0 1 2 3 4 5 6 7 8 9 A B C D E F
Boot Phases
Security (SEC)
Pre-EFI Initialization (PEI) – memory initialization
Driver Execution Environment (DXE) – main hardware initialization
Boot Device Selection (BDS)
bootable device (CD/DVD, HDD, USB, Network, Shell, …)