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Chapter 2
Diagnosis LED(Optional)
During the POST , the LED1~LED5 representing POST steps will light up in turn.
During the POST,If use the CPU of Hyper-Threading and Hyper-Threading is enable
in the BIOS,the LEDs will light up in turn, then blink together. please refer to the
following table to learn the POST status:
LED1 LED2 LED3 LED4 LED5
blink
off
off
on
off
off
off
on
off
off
off
on
off
off
off
off
off
off
on
on
on
off
off
CPU damaged , BIOS chip absent or damaged
off
off
system detect CPU and initialize chipset
off
off
system detect memory
off
off
system initialize PCI
on
off
system initialize clockgen
off
on
system detect Video and invoke Video BIOS
on
on
Hyper-Threading OK
11
status
LED1
LED2
LED3
LED4
LED5
P4I848P Pro
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