Acer Altos R710 manual Checkpoint, Beep Code, Description

194		Appendix D: BIOS POST Checkpoint Codes
Checkpoint	Beep Code	Description
Code
90h		Initialize hard-disk controller. If the CMOS
		RAM is valid and intact, and fixed disks are
		defined, call the fixed disk init routine to
		intialize the fixed disk system and take over
		the appropriate interrupt vectors.
91h		Configure the local bus IDE timing register
		based on the drives attached to it.
92h		Jump to UserPatch2.
93h		Build MPTABLE for multi-processor boards.
95h		1. Check CMOS for CD-ROM drive present
		2. Activate the drive by checking for media
		present
		3. Check sector 11h (17) for Boot Record Vol-
		ume Descriptor
		4. Check the boot catalog for validity
		5. Pick a boot entry
		6. Create a Specification Packet
96h		Reset segment-register addressibility from
		4GB to normal 64K by generating a Shut-
		down 8.
97h		Create pointer to MP table in Extended
		BDA.
98h	1-2	Search for option ROMs. ROM scan the area
		from C800h for a length of
		BCP_ROM_Scan_Size (or to E000h by
		default) on every 2K boundry, looking for
		add on cards that need initialization.
99h		Check support status for Self-Monitoring
		Analysis Reporting Technology (disk-failure
		warning).
9Ah		Shadow miscellaneous ROMs if specified by
		Setup and CMOS is valid and the previous
		boot was OK.