Acer Altos R720 Altos R720 User's Guide - Page 163

Runtime Phase/EFI Operating System Boot, Driver Execution Environment DXE Core

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153 Diagnostic LED Decoder Checkpoint code G=Green, R=Red, A=Amber MSB LSB Description 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

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153
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
Checkpoint
code
Diagnostic LED Decoder
Description
G=Green, R=Red, A=Amber
MSB
LSB