Acer G520 series manual Diagnostic LED Decoder

163

	Diagnostic LED Decoder
Check
	G=Green, R=Red, A+Amber				Description
point
	MSB			LSB
0A	G	OFF	G	OFF	Initializes the 8042
					compatible Key Board
					Controller
0B	G	OFF	G	G	Detects the presence of
					PS/2 Mouse
0C	G	G	OFF	OFF	Detects the presence of
					Keyboard in KBC Port
0E	G	G	G	OFF	Testing and initialization
					of different Input Devices.
					Also, update the Kernel
					Variables.
					Traps the INT09h vector,
					so that the POST INT09h
					handler gets control for
					IRQ1. Uncompress all
					available language, BIOS
					logo, and Silent logo
					modules.
13	OFF	OFF	G	A	Early POST initialization of
					chipset registers
24	OFF	G	R	OFF	Uncompress and initialize
					any platform specific BIOS
					modules
30	OFF	OFF	R	R	Initialize System
					Management Interrupt
2A	G	OFF	A	OFF	Initializes different devices
					through DIM. See DIM

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