Acer Altos R710 manual Checkpoint, Beep Code, Description

198		Appendix D: BIOS POST Checkpoint Codes
Checkpoint	Beep Code	Description
Code
E1h		Initialize the bridge.
E2h		Initialize the CPU.
E3h		Initialize system timer.
E4h		Initialize system I/O.
E5h		Check force recovery boot.
E6h		Checksum BIOS ROM.
E7h		Go to BIOS.
E8h		Initialize Multi-Processor
E9h		Set huge segment.
EAh		Initialize OEM special code.
EBh		Initialize PIC and DMA.
ECh		Initialize Memory type.
EDh		Initialize Memory size.
EEh		Shadow Boot Block.
EFh		System memory test.
F0h		Initialize interrupt vectors.
F1h		Initialize Run Time Clock.
F2h		Initialize video.
F3h		Initialilze System Management Mode.
F4h		Output one beep.
F5h		Boot to Mini DOS.
F6h		Clear Huge Segment.