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Here some Bios tips and stuff like generic passwords.

The original files are located at : http://www.computerhope.com Go there to see newer versions of these pages. It is a very good site with lots of answers.

 

AMI BIOS BEEP CODES

The following are AMI BIOS Beep Codes that can occur. However because of the wide variety of different computer manufacturers with this BIOS the beep codes may vary.

Beep Code

Descriptions

1 short

DRAM refresh failure

2 short

Parity circuit failure

3 short

Base 64K RAM failure

4 short

System timer failure

5 short

Process failure

6 short

Keyboard controller Gate A20 error

7 short

Virtual mode exception error

8 short

Display memory Read/Write test failure

9 short

ROM BIOS checksum failure

10 short

CMOS shutdown Read/Write error

11 short

Cache Memory error

1 long, 3 short

Conventional/Extended memory failure

1 long, 8 short

Display/Retrace test failed

AWARD BIOS BEEP CODES

The following are Award BIOS Beep Codes that can occur. However because of the wide variety of different computer manufacturers with this BIOS the beep codes may vary.

Beep Code

Description

1 long, 2 short

Indicates a video error has occurred and the BIOS cannot initialize the video screen to display any additional information

Any other beep(s)

RAM problem.

If any other correctable hardware issues the BIOS will display a message.

IBM BIOS

The following are IBM BIOS Beep Codes that can occur. However because of the wide variety of models shipping with this BIOS the beep codes may vary.

Beep Code

Description

No Beeps

No Power, Loose Card, or Short.

1 Short Beep

Normal POST, computer is ok.

2 Short Beep

POST error, review screen for error code.

Continuous Beep

No Power, Loose Card, or Short.

Repeating Short Beep

No Power, Loose Card, or Short.

One Long and one Short Beep

Motherboard issue.

One Long and Two short Beeps

Video (Mono/CGA Display Circuitry) issue.

One Long and Three Short Beeps.

Video (EGA) Display Circuitry.

Three Long Beeps

Keyboard / Keyboard card error.

One Beep, Blank or Incorrect Display

Video Display Circuitry.

MACINTOSH STARTUP TONES

TONES

ERROR

Error Tone. (two sets of different tones)

Problem with logic board or SCSI bus.

Startup tone, drive spins, no video

Problem with video controller.

Powers on, no tone.

Logic board problem.

High Tone, four higher tones.

Problem with SIMM.

PHOENIX BIOS BEEP CODES

The following is for PHOENIX BIOS Q3.07 OR 4.X

Beep Code

Description / What to Check

1-1-1-3

Verify Real Mode.

1-1-2-1

Get CPU type.

1-1-2-3

Initialize system hardware.

1-1-3-1

Initialize chipset registers with initial POST values.

1-1-3-2

Set in POST flag.

1-1-3-3

Initialize CPU registers.

1-1-4-1

Initialize cache to initial POST values.

1-1-4-3

Initialize I/O.

1-2-1-1

Initialize Power Management.

1-2-1-2

Load alternate registers with initial POST values.

1-2-1-3

Jump to UserPatch0.

1-2-2-1

Initialize keyboard controller.

1-2-2-3

BIOS ROM checksum.

1-2-3-1

8254 timer initialization.

1-2-3-3

8237 DMA controller initialization.

1-2-4-1

Reset Programmable Interrupt Controller.

1-3-1-1

Test DRAM refresh.

1-3-1-3

Test 8742 Keyboard Controller.

1-3-2-1

Set ES segment to register to 4 GB.

1-3-3-1

28 Autosize DRAM.

1-3-3-3

Clear 512K base RAM.

1-3-4-1

Test 512 base address lines.

1-3-4-3

Test 512K base memory.

1-4-1-3

Test CPU bus-clock frequency.

1-4-2-4

Reinitialize the chipset.

1-4-3-1

Shadow system BIOS ROM.

1-4-3-2

Reinitialize the cache.

1-4-3-3

Autosize cache.

1-4-4-1

Configure advanced chipset registers.

1-4-4-2

Load alternate registers with CMOS values.

2-1-1-1

Set Initial CPU speed.

2-1-1-3

Initialize interrupt vectors.

2-1-2-1

Initialize BIOS interrupts.

2-1-2-3

Check ROM copyright notice.

2-1-2-4

Initialize manager for PCI Options ROMs.

2-1-3-1

Check video configuration against CMOS.

2-1-3-2

Initialize PCI bus and devices.

2-1-3-3

Initialize all video adapters in system.

2-1-4-1

Shadow video BIOS ROM.

2-1-4-3

Display copyright notice.

2-2-1-1

Display CPU type and speed.

2-2-1-3

Test keyboard.

2-2-2-1

Set key click if enabled.

2-2-2-3

56 Enable keyboard.

2-2-3-1

Test for unexpected interrupts.

2-2-3-3

Display prompt "Press F2 to enter SETUP".

2-2-4-1

Test RAM between 512 and 640k.

2-3-1-1

Test expanded memory.

2-3-1-3

Test extended memory address lines.

2-3-2-1

Jump to UserPatch1.

2-3-2-3

Configure advanced cache registers.

2-3-3-1

Enable external and CPU caches.

2-3-3-3

Display external cache size.

2-3-4-1

Display shadow message.

2-3-4-3

Display non-disposable segments.

2-4-1-1

Display error messages.

2-4-1-3

Check for configuration errors.

2-4-2-1

Test real-time clock.

2-4-2-3

Check for keyboard errors

2-4-4-1

Set up hardware interrupts vectors.

2-4-4-3

Test coprocessor if present.

3-1-1-1

Disable onboard I/O ports.

3-1-1-3

Detect and install external RS232 ports.

3-1-2-1

Detect and install external parallel ports.

3-1-2-3

Re-initialize onboard I/O ports.

3-1-3-1

Initialize BIOS Data Area.

3-1-3-3

Initialize Extended BIOS Data Area.

3-1-4-1

Initialize floppy controller.

3-2-1-1

Initialize hard-disk controller.

3-2-1-2

Initialize local-bus hard-disk controller.

3-2-1-3

Jump to UserPatch2.

3-2-2-1

Disable A20 address line.

3-2-2-3

Clear huge ES segment register.

3-2-3-1

Search for option ROMs.

3-2-3-3

Shadow option ROMs.

3-2-4-1

Set up Power Management.

3-2-4-3

Enable hardware interrupts.

3-3-1-1

Set time of day.

3-3-1-3

Check key lock.

3-3-3-1

Erase F2 prompt.

3-3-3-3

Scan for F2 key stroke.

3-3-4-1

Enter SETUP.

3-3-4-3

Clear in-POST flag.

3-4-1-1

Check for errors

3-4-1-3

POST done--prepare to boot operating system.

3-4-2-1

One beep.

3-4-2-3

Check password (optional).

3-4-3-1

Clear global descriptor table.

3-4-4-1

Clear parity checkers.

3-4-4-3

Clear screen (optional).

3-4-4-4

Check virus and backup reminders.

4-1-1-1

Try to boot with INT 19.

4-2-1-1

Interrupt handler error.

4-2-1-3

Unknown interrupt error.

4-2-2-1

Pending interrupt error.

4-2-2-3

Initialize option ROM error.

4-2-3-1

Shutdown error.

4-2-3-3

Extended Block Move.

4-2-4-1

Shutdown 10 error.

4-3-1-3

Initialize the chipset.

4-3-1-4

Initialize refresh counter.

4-3-2-1

Check for Forced Flash.

4-3-2-2

Check HW status of ROM.

4-3-2-3

BIOS ROM is OK.

4-3-2-4

Do a complete RAM test.

4-3-3-1

Do OEM initialization.

4-3-3-2

Initialize interrupt controller.

4-3-3-3

Read in bootstrap code.

4-3-3-4

Initialize all vectors.

4-3-4-1

Boot the Flash program.

4-3-4-2

Initialize the boot device.

4-3-4-3

Boot code was read OK.

 Generic BIOS password listings:


Issue:

Generic BIOS password listings.

Additional Information:

If a BIOS password is forgotten in some cases it may be possible to use a generic BIOS password to bypass the unknown password. Or by using a generic BIOS password you may be able to change the password to a different password.

Cause:

If a password is mistakenly forgotten or set without your knowledge it may be necessary to use a generic password to bypass or change the password.

Solutions:

Below is a listing of generic passwords for the different types each of the major types of BIOS.

Note: It is important to realize that these passwords do not work on all types of computers and/or BIOS chipsets. If you are unable to bypass or change the password by using these passwords please refer to the document CH000235 for how to manually clear the unknown password.

AMI BIOS

A.M.I.
AMI
AMI_SW
AMI?SW
BIOS
HEWLITT RAND
LKWPETER
PASSWORD
Oder

AWARD BIOS

01322222
589589
589721
595595
598598
aLLy
aLLY
ALLY
ALFAROME
aPAf
_award
AWARD SW
AWARD PW
AWARD_SW
AWARD?SW
AWKWARD
BIOSTAR
CONCAT
Condo
d8on
djonet
HLT
J64
J256
J262
j332
j322
KDD
LKWPETER
lkwpeter
PINT
pint
SER
SKY_FOX
SYXZ
TTPTHA
ZAAADA
ZBAAACA
ZJAAADC

Russian Award Passwords:

% p%
% p% 

IBM APTIVA BIOS

Press both mouse buttons repeatedly during the boot

PHOENIX BIOS

phoenix

OTHER BIOS

ALFAROME
BIOSTAR
biostar
biosstar
CMOS
cmos
LKWPETER
lkwpeter
setup
SETUP
Syxz
Wodj

SOME COMPUTERS WITH TOSHIBA BIOS

Hold down the Shift key as the computer is booting 

 Question:

How to clear an unknown BIOS password.

Answer:

If you have mistakenly lost your password to the computer BIOS password or you receive a password at boot you will need to clear the BIOS password by one of the following methods.

Precaution: When inside the computer please be sure of the potential of E S D.

        Try generic BIOS passwords. A complete listing of these passwords can be found on document CH000451.

        On the computer motherboard locate the BIOS clear / password jumper or dipswitch and change its position. Once this jumper has been changed turn on the computer and the password should by cleared. Once cleared turn the computer off and return the jumper or dipswitch to its original position.

The location of the jumpers or dipswitches may vary, however here are general locations where these jumpers / dipswitch may be located.

1.      On the edge of the motherboard - Most jumpers are located on the side of the motherboard for easy accessibility, verify by looking at all visible edges of the motherboard.

2.      By the CMOS battery - Some manufactures will place the jumper to clear the CMOS / BIOS password by the actual CMOS battery.

3.      By the processor - Some manufactures will place the jumpers by the processor of the computer. However note that in some cases these jumpers will be to change the processor and not the password.

4.      Under the keyboard or bottom of laptop - If you are working on a computer laptop the location of the dipswitch (almost never a jumper) can be under the keyboard or on the bottom of the laptop in a compartment such as the memory compartment.

5.      Other visible location - While it is possible that the jumpers / dipswitches may not be in a visible location, most manufactures try to make things easier by placing the jumpers / dipswitches in another visible location.

Additionally, when looking for the jumper / dipswitch the label of that switch can be anything however in most cases will be labeled CLEAR - CLEAR CMOS - CLR - CLRPWD - PASSWD - PASSWORD - PWD.

        On the computer motherboard locate and remove the CMOS battery for at least 10 minutes allowing the computer to loose its information. Note: this will not work on all computers.

        If your manufacturer has a bypass password this can be entered and allow you access to the BIOS and or computer. Because of the security risk of a bypass password generally only older computers will have this option. In addition it is likely that this information will only be able to be obtained from the computer, motherboard or BIOS manufacturer.

        On the computer motherboard locate the CMOS solider beads and jump the solider beads to clear the password. The identification and location of these solider beads can vary and if not available in computer documentation is generally only obtainable through the computer manufacturer.

If one of the above solutions do not clear the password or you are unable to locate the jumpers or solider beads it is recommended you contact the computer manufacturer for the steps on clearing the computer password.

 

 

 

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