Troubleshooting BIOS Beep Codes - Phoenix BIOS - Newer Family

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1-1-1-3 (02h): Verify real mode

1-1-2-1 (04h): Get CPU type

1-1-2-3 (06h): Initialize system hardware

1-1-3-1 (08h): Initialize chipset registers with initial POST values

1-1-3-2 (09h): Set in POST flag

1-1-3-3 (0Ah): Initialize CPU registers

1-1-4-1 (0Ch): Initialize cache to initial POST values

1-1-4-3 (0Eh): Initialize I/O

1-2-1-1 (10h): Initialize Power Management

1-2-1-2 (11h): Load alternate registers with initial POST values

1-2-1-3 (12h): Jump to UserPatch0

1-2-2-1 (14h): Initialize keyboard controller

1-2-2-3 (16h): BIOS ROM checksum

1-2-3-1 (18h): 8254 timer initialization

1-2-3-3 (1Ah): 8237 DMA controller initialization

1-2-4-1 (1Ch): Reset Programmable Interrupt Controller

1-3-1-1 (20h): Test DRAM refresh

1-3-1-3 (22h): Test 8742 Keyboard Controller

1-3-2-1 (24h): Set ES segment register to 4 GB

1-3-3-1 (28h): Autosize DRAM

1-3-3-3 (2Ah): Clear 512K base RAM

1-3-4-1 (2Ch): Test 512 base address lines

1-3-4-3 (2Eh): Test 512K base memory

1-4-1-3 (32h): Test CPU bus-clock frequency

1-4-2-1 (34h): CMOS RAM read/write failure

1-4-2-4 (37h): Reinitialize the chipset

1-4-3-1 (38h): Shadow system BIOS ROM

1-4-3-2 (39h): Reinitialize the cache

1-4-3-3 (3Ah): Autosize cache

1-4-4-1 (3Ch): Configure advanced chipset registers

1-4-4-2 (3Dh): Load alternate registers with CMOS values

2-1-1-1 (40h): Set Initial CPU speed

2-1-1-3 (42h): Initialize interrupt vectors

2-1-2-1 (44h): Initialize BIOS interrupts

2-1-2-3 (46h): Check ROM copyright notice

2-1-2-4 (47h): Initialize manager for PCI Options ROMs

2-1-3-1 (48h): Check video configuration against CMOS

2-1-3-2 (49h): Initialize PCI bus and devices

2-1-3-3 (4Ah): Initialize all video adapters in system

2-1-4-1 (4Ch): Shadow video BIOS ROM

2-1-4-3 (4Eh): Display copyright notice

2-2-1-1 (50h): Display CPU type and speed

2-2-1-3 (52h): Test keyboard

2-2-2-1 (54h): Set key click if enabled

2-2-2-3 (56h): Enable keyboard

2-2-3-1 (58h): Test for unexpected interrupts

2-2-3-3 (5Ah): Display prompt "Press F2 to enter SETUP"

2-2-4-1 (5Ch): Test RAM between 512 and 640k

2-3-1-1 (60h): Test expanded memory

2-3-1-3 (62h): Test extended memory address lines

2-3-2-1 (64h): Jump to UserPatch1

2-3-2-3 (66h): Configure advanced cache registers

2-3-3-1 (68h): Enable external and CPU caches

2-3-3-2 (69h): Initialize SMI handler

2-3-3-3 (6Ah): Display external cache size

2-3-4-1 (6Ch): Display shadow message

2-3-4-3 (6Eh): Display non-disposable segments

2-4-1-1 (70h): Display error messages

2-4-1-3 (72h): Check for configuration errors

2-4-2-1 (74h): Test real-time clock

2-4-2-3 (76h): Check for keyboard errors

2-4-4-1 (7Ch): Set up hardware interrupts vectors

2-4-4-3 (7Eh): Test coprocessor if present

3-1-1-1 (80h): Disable onboard I/O ports

3-1-1-3 (82h): Detect and install external RS232 ports

3-1-2-1 (84h): Detect and install external parallel ports

3-1-2-3 (86h): Re-initialize onboard I/O ports

3-1-3-1 (88h): Initialize BIOS data area

3-1-3-3 (8Ah): Initialize extended BIOS data area

3-1-4-1 (8Ch): Initialize floppy controller

3-2-1-1 (90h): Initialize hard-disk controller

3-2-1-2 (91h): Initialize local-bus hard-disk controller

3-2-1-3 (92h): Jump to UserPatch2

3-2-2-1 (94h): Disable A20 address line

3-2-2-3 (96h): Clear huge ES segment register

3-2-3-1 (98h): Search for option ROMs

3-2-3-3 (9Ah): Shadow option ROMs

3-2-4-1 (9Ch): Set up Power Management

3-2-4-3 (9Eh): Enable hardware interrupts

3-3-1-1 (A0h): Set time of day

3-3-1-3 (A2h): Check key lock

3-3-3-1 (A8h): Erase F2 prompt

3-3-3-3 (AAh): Scan for F2 key stroke

3-3-4-1 (ACh): Enter SETUP

3-3-4-3 (AEh): Clear in-POST flag

3-4-1-1 (B0h): Check for errors

3-4-1-3 (B2h): POST done--prepare to boot operating system

3-4-2-1 (B4h): One beep

3-4-2-3 (B6h): Check password (optional)

3-4-3-1 (B8h): Clear global descriptor table

3-4-4-1 (BCh): Clear parity checkers

3-4-4-3 (BEh): Clear screen (optional)

3-4-4-4 (BFh): Check virus and backup reminders

4-1-1-1 (C0h): Try to boot with INT 19

4-2-1-1 (D0h): Interrupt handler error

4-2-1-3 (D2h): Unknown interrupt error

4-2-2-1 (D4h): Pending interrupt error

4-2-2-3 (D6h): Initialize option ROM error

4-2-3-1 (D8h): Shutdown error

4-2-3-3 (DAh): Extended Block Move

4-2-4-1 (DCh): Shutdown error

4-2-4-3 (DEh): Keyboard Controller Failure

4-3-1-3 (E2h): Initialize the chipset

4-3-1-4 (E3h): Initialize refresh counter

4-3-2-1 (E4h): Check for Forced Flash

4-3-2-2 (E5h): Check HW status of ROM

4-3-2-3 (E6h): BIOS ROM is OK

4-3-2-4 (E7h): Do a complete RAM test

4-3-3-1 (E8h): Do OEM initialization

4-3-3-2 (E9h): Initialize interrupt controller

4-3-3-3 (EAh): Read in bootstrap code

4-3-3-4 (EBh): Initialize all vectors

4-3-4-1 (ECh): Boot the Flash program

4-3-4-2 (EDh): Initialize the boot device

4-3-4-3 (EEh): Boot code was read OK


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