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MS-9246 1U Rackmount Server
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Diagnostic LEDs: DLED1/DLED2/DLED3/DLED4
Memory LEDs:D29/D30/D31/D32/D33/D35
Component LEDs and four Diagnostic LEDs are integrated onboard, helping
users diagnose their systems.
W hen POST or Service Processor detects an error, the corresponding LEDs
light up to alert users to the condition and help service personnel identify the
failing component. A system status LED on the front panel of the system first
alerts users that an error has occurred. Service personnel next check inside
the system to see which LED glows. This helps the service personnel to
locate the failing component for replacement. The full failing path remians lit
until POST no longer exists or the error is fixed.
The four Diagnostic LEDs can detect all problems that fail the system, such
as VGA, RAM or other failures, and provide up to 16 combinations of signals
to debug the system. Please refer to the following table for signal description.
Red
D-LEDs
1
3
1
3
1
3
1
3
1
3
1
3
1-8
Green
System Power ON
2
- The D-LED will hang here if the processor is damaged or not
4
installed properly.
Early Chipset Initialization
2
4
Memory Detection Test
- Testing onboard memory size. The D-LED will hang if the memory
2
module is damaged or not installed properly.
4
Decompressing BIOS image to RAM for fast booting.
2
4
Initializing Keyboard Controller.
2
4
Testing VGA BIOS
2
- This will start writing VGA sign-on message to the screen.
4
DLED1
DLED2
DLED3
DLED4
Description
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