MSI MEG Z690 UNIFY User Manual - Page 54

Onboard LEDs, EZ Debug LED, Debug Code LED, Hexadecimal Character Table, Boot Phases

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Onboard LEDs EZ Debug LED These LEDs indicate the debug status of the motherboard. CPU - indicates CPU is not detected or fail. DRAM - indicates DRAM is not detected or fail. VGA - indicates GPU is not detected or fail. BOOT - indicates the booting device is not detected or fail. 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. Debug Code LED Hexadecimal Character Table Hexadecimal 0 1 2 3 4 5 6 7 8 9 A B C D E F Debug Code LED display 0123456789ABCDEF Boot Phases Security (SEC) - initial low-level initialization Pre-EFI Initialization (PEI) - memory initialization Driver Execution Environment (DXE) - main hardware initialization Boot Device Selection (BDS) - system setup, pre-OS user interface & selecting a bootable device (CD/DVD, HDD, USB, Network, Shell, ...) 54 Onboard LEDs

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54
Onboard LEDs
EZ Debug LED
These LEDs indicate the debug status of the motherboard.
CPU
- indicates CPU is not detected or fail.
DRAM
- indicates DRAM is not detected or fail.
VGA
- indicates GPU is not detected or fail.
BOOT
- indicates the booting device is not detected
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
0123456789ABCDEF
Boot Phases
Security (SEC)
– initial low-level initialization
Pre-EFI Initialization (PEI)
– memory initialization
Driver Execution Environment (DXE)
– main hardware initialization
Boot Device Selection (BDS)
– system setup, pre-OS user interface & selecting a
bootable device (CD/DVD, HDD, USB, Network, Shell, …)