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Chapter 1
D-LED™
The D-LED™ uses graphic signal display to help users understand
their system. Four LEDs embedded in the mainboard provide up to 16
combinations of signals to debug the system. The 4 LEDs can debug all
problems that fail the system, such as VGA, RAM or other failures. This
special feature is very useful for the overclocking users. These users can
use the feature to detect if there are any problems or failures. The defini-
tions of LED signal combinations are listed below:
Red
D-LED
1
2
3
4
1
2
Diagnostic LED
Green
System Power ON
- The D-LED will hang here if the processor is damaged or not installed
properly.
Early Chipset Initialization
Memory Detection Test
- Testing onboard memory size. The D-LED will hang if the memory
module is damaged or not installed properly.
Decompressing BIOS image to RAM for fast booting.
Initializing Keyboard Controller.
Testing VGA BIOS
- This will start writing VGA sign-on message to the screen.
1-10
3
4
Description
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