TYAN S4885G2NR, Manual

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73
Code Beeps / Description Code Beeps / Description
7Eh Initialize coprocessor if present BAh Initialize DMI parameters
80h Disable onboard Super I/O ports and
IRQs
BBh Initialize PnP Option ROMs
81h Late POST device initialization BCh Clear parity checkers
82h Detect and install external RS232
ports BDh Display MultiBoot menu
83h Configure non-MCD IDE controllers BEh Clear screen (optional)
84h Detect and install external parallel
ports
BFh Check virus and backup reminders
85h Initialize PC-compatible PnP ISA
devices
C0h Try to boot with INT 19
86h. Re-initialize onboard I/O ports. C1h Initialize POST Error Manager (PEM)
87h Configure Motherboard Devices C2h Initialize error logging
88h Initialize BIOS Data Area C3h Initialize error display function
89h Enable Non-Maskable Interrupts
(NMIs) C4h Initialize system error handler
8Ah Initialize Extended BIOS Data Area C5h PnPnd dual CMOS (optional)
8Bh Test and initialize PS/2 mouse C6h Initialize notebook docking (optional)
8Ch Initialize floppy controller C7h Initialize notebook docking late
8Fh Determine number of ATA drives
(optional) C8h Force check (optional)
90h Initialize hard-disk controllers C9h Extended checksum (optional)
91h Initialize local-bus hard-disk
controllers
D2h Unknown interrupt
92h Jump to UserPatch2 E0h Initialize the chipset
93h Build MPTABLE for multi-processor
boards E1h Initialize the bridge
95h Install CD ROM for boot E2h Initialize the CPU
96h Clear huge ES segment register E3h Initialize system timer
97h Fixup Multi Processor table E4h Initialize system I/O
98h 1-2. Search for option ROMs. E5h Check force recovery boot
99h Check for SMART Drive (optional) E6h Checksum BIOS ROM
9Ah Shadow option ROMs E7h Go to BIOS
9Ch Set up Power Management E8h Set Huge Segment
9Dh Initialize security engine (optional) E9h Initialize Multi Processor
9Eh Enable hardware interrupts EAh Initialize OEM special code
9Fh Determine number of ATA and SCSI
drives
EBh Initialize PIC and DMA
A0h Set time of day ECh Initialize Memory type
A2h Check key lock EDh Initialize Memory size
A4h Initialize Typematic rate EEh Shadow Boot Block
A8h Erase F2 prompt EFh System memory test
AAh Scan for F2 key stroke F0h Initialize interrupt vectors
ACh Enter SETUP F1h Initialize Run Time Clock
AEh Clear Boot flag F2h Initialize video
B0h Check for errors F3h Initialize System Management Mode
B2h POST done - prepare to boot
operating system
F4h Output one beep before boot