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Phoenix v4.0

Beeps

Code

Meaning

1-1-1-3

02

Verify Real Mode

1-1-2-1

04

Get CPU type

1-1-2-3

06

Initialize system hardware

1-1-3-1

08

Initialize chipset registers with initial POST values

1-1-3-2

09

Set in POST flag

1-1-3-3

0A

Initialize CPU registers

1-1-4-1

0C

Initialize cache to initial POST values

1-1-4-3

0E

Initialize I/O

1-2-1-1

10

Initialize Power Management

1-2-1-2

11

Load alternate registers with initial POST values

1-2-1-3

12

Jump to UserPatch0

1-2-2-1

14

Initialize keyboard controller

1-2-2-3

16

BIOS ROM checksum

1-2-3-1

18

8254 timer initialization

1-2-3-3

1A

8237 DMA controller initialization

1-2-4-1

1C

Reset Programmable Interrupt Controller

1-3-1-1

20

Test DRAM refresh

1-3-1-3

22

Test 8742 Keyboard Controller

1-3-2-1

24

Set ES segment to register to 4 GB

1-3-3-1

28

Autosize DRAM

1-3-3-3

2A

Clear 512K base RAM

1-3-4-1

2C

Test 512 base address lines

1-3-4-3

2E

Test 512K base memory

1-4-1-3

32

Test CPU bus-clock frequency

1-4-2-4

37

Reinitialize the chipset

1-4-3-1

38

Shadow system BIOS ROM

1-4-3-2

39

Reinitialize the cache

1-4-3-3

3A

Autosize cache

1-4-4-1

3C

Configure advanced chipset registers

1-4-4-2

3D

Load alternate registers with CMOS values

2-1-1-1

40

Set Initial CPU speed

2-1-1-3

42

Initialize interrupt vectors

2-1-2-1

44

Initialize BIOS interrrupts

2-1-2-3

46

Check ROM copyright notice

2-1-2-4

47

Initialize manager for PCI Options ROMs

2-1-3-1

48

Check video configuration against CMOS

2-1-3-2

49

Initialize PCI bus and devices

2-1-3-3

4A

Initialize all video adapters in system

2-1-4-1

4C

Shadow video BIOS ROM

2-1-4-3

4E

Display copyright notice

2-2-1-1

50

Display CPU type and speed

2-2-1-3

52

Test keyboard

2-2-2-1

54

Set key click if enabled

2-2-2-3

56

Enable keyboard

2-2-3-1

58

Test for unexpected interrupts

2-2-3-3

5A

Display prompt "Press F2 to enter SETUP"

2-2-4-1

5C

Test RAM between 512 and 640k

2-3-1-1

60

Test expanded memory

2-3-1-3

62

Test extended memory address lines

2-3-2-1

64

Jump to UserPatch1

2-3-2-3

66

Configure advanced cache registers

2-3-3-1

68

Enable external and CPU caches

2-3-3-3

6A

Display external cache size

2-3-4-1

6C

Display shadow message

2-3-4-3

6E

Display non-disposable segments

2-4-1-1

70

Display error messages

2-4-1-3

72

Check for configuration errors

2-4-2-1

74

Test real-time clock

2-4-2-3

76

Check for keyboard errors

2-4-4-1

7C

Set up hardware interrupts vectors

2-4-4-3

7E

Test coprocessor if present

3-1-1-1

80

Disable onboard I/O ports

3-1-1-3

82

Detect and install external RS232 ports

3-1-2-1

84

Detect and install external parallel ports

3-1-2-3

86

Re-initialize onboard I/O ports

3-1-3-1

88

Initialize BIOS Data Area

3-1-3-3

8A

Initialize Extended BIOS Data Area

3-1-4-1

8C

Initialize floppy controller

3-2-1-1

90

Initialize hard-disk controller

3-2-1-2

91

Initialize local-bus hard-disk controller

3-2-1-3

92

Jump to UserPatch2

3-2-2-1

94

Disable A20 address line

3-2-2-3

96

Clear huge ES segment register

3-2-3-1

98

Search for option ROMs

3-2-3-3

9A

Shadow option ROMs

3-2-4-1

9C

Set up Power Management

3-2-4-3

9E

Enable hardware interrupts

3-3-1-1

A0

Set time of day

3-3-1-3

A2

Check key lock

3-3-3-1

A8

Erase F2 prompt

3-3-3-3

AA

Scan for F2 key stroke

3-3-4-1

AC

Enter SETUP

3-3-4-3

AE

Clear in-POST flag

3-4-1-1

B0

Check for errors

3-4-1-3

B2

POST done--prepare to boot operating system

3-4-2-1

B4

One beep

3-4-2-3

B6

Check password (optional)

3-4-3-1

B8

Clear global descriptor table

3-4-4-1

BC

Clear parity checkers

3-4-4-3

BE

Clear screen (optional)

3-4-4-4

BF

Check virus and backup reminders

4-1-1-1

C0

Try to boot with INT 19

4-2-1-1

D0

Interrupt handler error

4-2-1-3

D2

Unknown interrupt error

4-2-2-1

D4

Pending interrupt error

4-2-2-3

D6

Initialize option ROM error

4-2-3-1

D8

Shutdown error

4-2-3-3

DA

Extended Block Move

4-2-4-1

DC

Shutdown 10 error

Flash BIOS Integrity Test

4-3-1-3

E2

Initialize the chipset

4-3-1-4

E3

Initialize refresh counter

4-3-2-1

E4

Check for Forced Flash

4-3-2-2

E5

Check HW status of ROM

4-3-2-3

E6

BIOS ROM is OK

4-3-2-4

E7

Do a complete RAM test

Flash recovery

4-3-3-1

E8

Do OEM initialization

4-3-3-2

E9

Initialize interrupt controller

4-3-3-3

EA

Read in bootstrap code

4-3-3-4

EB

Initialize all vectors

4-3-4-1

EC

Boot the Flash program

4-3-4-2

ED

Initialize the boot device

4-3-4-3

EE

Boot code was read OK

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