Acer Altos R310, Руководство по обслуживанию

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Chapter 4 58
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 Volume
Descriptor
4. Check the boot catalog for validity
5. Pick a boot entry
6. Create a Specification Packet
96h Reset segment-register addressibility from4GB 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
foradd on cards that need initialization.
99h Check support status for Self-Monitoring Analysis
Reporting Technology (disk-failure warning).
9Ah Shadow miscellaneous ROMs if specified bySetup
and CMOS is valid and the previous
boot was OK.
9Ch Set up Power Management. Initiate power
management state machine.
9Dh Initialize Security Engine.
9Eh Enable hardware interrupts.
9Fh Check the total number of Fast Disks (ATA and
SCSI) and update the bdaFdiskCount.
A0h Verify that the system clock is interrupting.
A2h Setup Numlock indicator. Display a message if key
switch is locked.
A4h Initialize the typematic rate.
A8h Overwrite the "Press F2 for Setup" prompt with
spaces, erasing it from the screen.
AAh Scan the key buffer to see if the F2 key was struck
after keyboard interrupts were enabled. If an F2
keystroke is found, set a flag.
ACh Enter SETUP
If (F2 was pressed) go to SETUP
Else if (errors were found)
display "Press F1 or F2" prompt
if (F2 is pressed) go to setup
else if (F1 is pressed)
boot
Else boot
AEh Clear ConfigFailedBit and InPostBit in CMOS.
Checkpoint Code Beep Code Description