Acer G520 series Appendix F Diagnostic Code Checkpoints, Diagnostic LED Decoder, Description

164			Appendix F: Diagnostic Code Checkpoints
	Diagnostic LED Decoder
Check
	G=Green, R=Red, A+Amber				Description
point
	MSB			LSB
2C	G	G	R	OFF	Initializes different
					devices. Detects and
					initializes the video
					adapter installed in the
					system that have optional
					ROMs
2E	G	G	A	OFF	Initializes all the output
					devices
31	OFF	OFF	R	A	Allocate memory for ADM
					module and uncompress
					it. Give control to ADM
					module for initialization.
					Initialize language and
					font modules for ADM.
					Activate ADM module.
33	OFF	OFF	A	A	Initializes the silent boot
					module. Set the window
					for displaying text
					information.
37	OFF	G	A	A	Displaying sign-on
					message, CPU
					information, setup key
					message, and any OEM
					specific information.
38	G	OFF	R	R	Initializes different devices
					through DIM. See DIM
					Code Checkpoints section
					of document for more
					information.
39	G	OFF	R	A	Initializes DMAC-1 and
					DMAC-2.
3A	G	OFF	A	R	Initialize RTC date/time