D-4

Appendix D

 

 

AC2003 POST Code Definition:

POST

(hex)

Description

Power On Sequence

81Start power on sequence

82Enable ATX power supply

83ATX power supply ready

84DDR voltage ready

85Setup PWM for CPU core voltage

86Assert PWM for CPU core voltage

87Check CPU core voltage

88CPU core voltage ready

89Initial clock generator IC

8A North Bridge chipset voltage ready

8B AGP voltage ready

8C 3VDUAL voltage ready

8D VDDA 2.5V voltage ready

8D GMCHVTT voltage ready

8E Check CPU fan speed

8F Assert all power ready

Complete uGuru initial process

90

AWARD BIOS take over booting job

Power Off Sequence

91Start power off sequence

92De-Assert all power

93Se-Assert power on

94De-Assert LDT Bus power

95De-Assert PWM for CPU core voltage

96De-Assert CPU core voltage

97Check CPU core voltage

98De-Assert ATX power supply

99Complete power off sequence

Others

F0 Button reset

F1 SoftMenu reset

F2 Power on sequence timeout

F3 Power off sequence timeout

AN7