Error Reporting and Handling SE7500CW2 Server Board Technical Product Specification
74
Revision 1.40
Tpoint Description
8Fh Count the number of ATA drives in the system and update the number in bdaFdiskcount.
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 initialize 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. See "The POST Component".
93h Build the 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 from 4GB to normal 64K by generating a Shutdown 8.
97h Create pointer to MP table in Extended BDA.
98h 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 ROMs. Rom scan the area from C800h for a length of BCP_ROM_Scan_Size(or to
E000h by default) on every 2K boundary, looking for add on cards that need initialization.
9Ah Shadow miscellaneous ROMs if specified by Setup 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 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.
B0h Check for errors.
If (errors were found)
beep twice
display "F1 or F2" message
if (F2 keystroke) go to SETUP
if (F1 keystroke) go to BOOT
B2h Change status bits in CMOS and/or the BIOS data area to reflect the fact that POST is complete.
B4h One quick beep
B5h Turn off <Esc> and <F2> key checking.
IF (VGA adapter is present)
IF (OEM screen is still up)
Note OEM screen is gone.
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