Acer Altos R520 manual 146, Pre-EFI Initialization PEI Core, Driver Execution Environment DXE Core

146					5 Troubleshooting
	Diagnostic LED Decoder
Checkpoint	G=Green, R=Red, A=Amber				Description
code
	MSB			LSB
0xDB	A	R	G	A	Trying boot device selection
0xDC	A	A	OFF	R	Trying boot device selection
0xDE	A	A	G	R	Trying boot device selection
0xDF	A	A	G	A	Trying boot device selection
Pre-EFI Initialization (PEI) Core
0xE0h	R	R	R	OFF	Started dispatching early
					initialization modules (PEIM)
0xE2h	R	R	A	OFF	Initial memory found, configured,
					and installed correctly
0xE1h	R	R	R	G	Reserved for initialization module
					use (PEIM)
0xE3h	R	R	A	G	Reserved for initialization module
					use (PEIM)
Driver Execution Environment (DXE) Core
0xE4h	R	A	R	OFF	Entered EFI driver execution phase
					(DXE)
0xE5h	R	A	R	G	Started dispatching drivers
0xE6h	R	A	A	OFF	Started connecting drivers
DXE Drivers
0xE7h	R	A	A	G	Waiting for user input
0xE8h	A	R	R	OFF	Checking password
0xE9h	A	R	R	G	Entering BIOS setup
0xEAh	A	R	A	OFF	Flash update
0xEEh	A	A	A	OFF	Calling Int 19. One beep unless
					silent boot is enabled.
0xEFh	A	A	A	G	Unrecoverable boot failure / S3
					resume failure
Runtime Phase/EFI Operating System Boot
0xF4h	R	A	R	R	Entering Sleep state
0xF5h	R	A	R	A	Exiting Sleep state