AOpen AX45-533 Max Online Manual page 60

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Dr. LED is a CD disc storage box with 8 LEDs on its front panel, the size of Dr. LED is exactly the same as 5.25 in floppy drive, so that it
can be mount into normal 5.25 in drive bay of any housing.
The total 8 LEDs light up alternatively if the system fails in one of eight stages. Once the LED7 (latest LED) is lit, this indicates that the
system has completed its boot-up procedure.
The 8 LEDs indicate the following messages when lit:
LED 0 - Indicates that the CPU may have been installed incorrectly or is damaged.
LED 1 - Indicates that the memory may have been installed incorrectly or is damaged.
LED 2 - Indicates that the AGP may have been installed incorrectly or is damaged.
LED 3 - Indicates that the PCI card may have been installed incorrectly or is damaged.
LED 4 - Indicates that the floppy disk drive may have been installed incorrectly or is damaged.
LED 5 - Indicates that the HDD may have been installed incorrectly or is damaged.
LED 6 - Indicates that the keyboard may have been installed incorrectly or is damaged.
LED 7 - Indicates that the system is OK.
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7 6 5
Boot O.K. KB HDD
Note: During POST (Power On Self Test) procedure, the Debug
LED will light on sequentially from LED0 to LED7 until the system
boot O.K
4 3 2 1
Floppy
PCI Video Memory
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CPU
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