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Diagnostic LEDs
LED 1 to LED 4 are diagnostic LEDs. These LEDs will indicate the
current condition of the system.
Ear ly program chipset
register before POST.
Testing memory presence.
Detecting memory size.
No memory present.
Programming DRAM timing
register.
Calculating DRAM size
variable including row,
column and bank.
Initializing JEDEC of current
DRAM row.
Checking CMOS checksum
and battery.
Initializing
the
generator.
Initializing USB.
Testing all memory (cleared
all extended memory to 0).
Initializing the onboard
Super IO.
Detecting and installing an
IDE device.
Final initialization.
Booting the system.
Hardware Installation
LED 1
LED 2
On
Off
Off
On
On
On
Off
Off
On
Off
Off
On
On
On
Off
Off
clock
On
Off
Off
On
On
On
Off
Off
On
Off
Off
On
On
On
LED 3
LED 4
Off
Off
Off
Off
Off
Off
On
Off
On
Off
On
Off
On
Off
Off
On
Off
On
Off
On
Off
On
On
On
On
On
On
On
On
On
2
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