BIOS PASSWORDS

The following articles have been made by copying from other sites, and information from companies I have to state I never worked for!

Please remember that most BIOS passwords do not protect the hard drive, so if you need to recover the data, simply remove the hard drive and install it in an identical system, or configure it as a slave drive in an existing system.

*The exception to this are laptops, especially IBM ThinkPad's, with the security chips software installed will  silently lock the hard drive if the supervisor password is enabled. If the supervisor password is reset without resetting the and hard drive as well, you will be unable to access the data on the drive. The only way passed this is replacing the mother board and hard drive.  IBM's security chip software will warn you when installing and tell you to back up the keys to disk.

 

Bypass AWARD BIOS Password

If a BIOS password has been set on an AWARD BIOS, and you can't get round it without discharging CMOS, try this one.

When prompted for the password, hold down the shift key and type

AWARD_SW

Hit enter and release the shift key, hey presto, you've not only bypassed the password, you've removed it!  

Award BIOS backdoor passwords:

ALFAROME
ALLy
aLLy
aLLY
ALLY
aPAf
_award
AWARD_SW
AWARD?SW
AWARD SW
AWARD PW
AWKWARD
awkward

BIOSTAR
CONCAT
CONDO
Condo
d8on
djonet
HLT
J64
J256
J262
j332
j322

KDD
Lkwpeter
LKWPETER
PINT
pint
SER
SKY_FOX
SYXZ
syxz
shift + syxz
TTPTHA

ZAAADA
ZBAAACA
ZJAAADC
01322222
589589
589721
595595
598598

AMI BIOS backdoor passwords:

AMI
AAAMMMIII
BIOS
PASSWORD
HEWITT RAND
AMI?SW
AMI_SW
LKWPETER
A.M.I.
CONDO

PHOENIX BIOS backdoor passwords:

phoenix, PHOENIX, CMOS, BIOS

MISC. COMMON PASSWORDS

ALFAROME
BIOSTAR
biostar
biosstar
CMOS
cmos

LKWPETER
lkwpeter
setup
SETUP
Syxz
Wodj

OTHER BIOS PASSWORDS BY MANUFACTURER

Manufacturer

Password

VOBIS & IBM

merlin

Dell

Dell

Biostar

Biostar

Compaq

Compaq

Enox

xo11nE

Epox

central

Freetech

Posterie

IWill

iwill

Jetway

spooml

Packard Bell

bell9

QDI

QDI

Siemens

SKY_FOX

TMC

BIGO

Toshiba

Toshiba

TOSHIBA BIOS

Most Toshiba laptops and some desktop systems will bypass the BIOS password if the left shift key is held down during boot

IBM APTIVA BIOS

Press both mouse buttons repeatedly during the boot

 

IBM

Most newer IBM’s it is F1 to enter setup on the desk top and F2 on the lap top

GATEWAY

Newer Gateways are F1 for Desk Top and F2 for Laptops

COMPAQ

F10

HP

F1

 

Using the Motherboard "Clear CMOS" Jumper or Dipswitch settings

Many motherboards feature a set of jumpers or dipswitches that will clear the CMOS and wipe all of the custom settings including BIOS passwords. The locations of these jumpers / dipswitches will vary depending on the motherboard manufacturer and ideally you should always refer to the motherboard or computer manufacturers documentation. If the documentation is unavailable, the jumpers/dipswitches can sometimes be found along the edge of the motherboard, next to the CMOS battery, or near the processor. Some manufacturers may label the jumper / dipswitch  CLEAR - CLEAR CMOS - CLR - CLRPWD - PASSWD - PASSWORD - PWD. On laptop computers, the dipswitches are usually found under the keyboard or within a compartment at the bottom of the laptop. 

Please remember to unplug your PC and use a grounding strip before reaching into your PC and touching the motherboard. Once you locate and rest the jumper switches,  turn the computer on and check if the password has been cleared. If it has, turn the computer off and return the jumpers or dipswitches to its original position.

Removing the CMOS Battery

The CMOS settings on most systems are buffered by a small battery that is attached to the motherboard. (It looks like a small watch battery). If you unplug the PC and remove the battery for 10-15 minutes, the CMOS may reset itself and the password should be blank. (Along with any other machine specific settings, so be sure you are familiar with manually reconfiguring the BIOS settings before you do this.) Some manufacturers backup the power to the CMOS chipset by using a capacitor, so if your first attempt fails, leave the battery out (with the system unplugged) for at least 24 hours. Some batteries are actually soldered onto the motherboard making this task more difficult. Unsoldering the battery incorrectly may damage your motherboard and other components, so please don't attempt this if you are inexperienced. Another option may be to remove the CMOS chip from the motherboard for a period of time. 

Note: Removing the battery to reset the CMOS will not work for all PC's, and almost all of the newer laptops store their BIOS passwords in a manner which does not require continuous power, so removing the CMOS battery may not work at all.  IBM Thinkpad laptops lock the hard drive as well as the BIOS when the supervisor password is set. If you reset the BIOS password, but cannot reset the hard drive password, you may not be able to access the drive and it will remain locked, even if you place it in a new laptop. IBM Thinkpads have special jumper switches on the motherboard, and these should be used to reset the system.

 

Overloading the KeyBoard Buffer

On some older computer systems, you can force the CMOS to enter its setup screen on boot by overloading the keyboard buffer. This can be done by booting with the keyboard or mouse unattached to the systems, or on some systems by hitting the ESC key over 100 times in rapid succession.

 

Jumping the Solder Beads on the CMOS

It is also possible to reset the CMOS by connecting or "jumping" specific solder beads on the chipset. There are too many chipsets to do a breakdown of which points to jump on individual chipsets, and the location of these solder beads can vary by manufacturer, so please check your computer and motherboard documentation for details. This technique is not recommended for the inexperienced and should be only be used as a "last ditch" effort.

DEBUG BIOS PASSWORD ( from the Command Prompt )


NOTE: This works ONLY with MS-DOS 5.xx/6.xx, MS-DOS 7.xx [a.k.a. MS Windows 9x] or any other real mode OS.
 

This DOS trick deletes (resets to default) your motherboard BIOS CMOS password, to grant access to your computer and/or BIOS Setup once again, in case you have forgotten or lost it.
Exit MS Windows or reboot to native MS-DOS mode, using the "Command prompt only" option from the
Windows 95/98 Startup Menu: Tap F8 at the same time while your PC boots.


Then type at the C:\> prompt:

DEBUG

and hit Enter. You'll see a dash (-) at the DEBUG prompt. Now type:

o 70 2e

which will show as -o 70 2e at the DEBUG prompt. Hit Enter. Then type:

o 71 ff

and hit Enter. Finally type:

Q

and hit Enter one last time to quit DEBUG back to the C:\> prompt.
Now you're ready to reboot your PC, and press the appropriate key or key combo (look it up in your motherboard manual if you don't know it) to access your BIOS Setup. You'll notice the password is gone.

 

This will ALSO Run from windows command:  

From within Windows, click on Start, Run, and type in Command.

From a root directory  C:\> prompt:

DEBUG

and hit Enter. You'll see a dash (-) at the DEBUG prompt. Now type:

o 70 2e

which will show as -o 70 2e at the DEBUG prompt. Hit Enter. Then type:

o 71 ff

and hit Enter. Finally type:

Q

 

Note this will also load the default CMOS settings in the BIOS other wise known as clearing the "NVram"

 

 

 

Using a professional service

If the manufacturer of the laptop or desktop PC can't or won't reset the BIOS password, you still have the option of using a professional service. They offer a variety of services for desktop and laptop computers for between $100 and $400. For most of these services, you'll need to provide some type of legitimate proof of ownership. This may be difficult if you've acquired the computer second hand or from an online auction.

OTHER OPTIONS

Mad boot disk  offers you a click to remove the password

You can download to a floppy disk from Tweak's boot disks page

Tweak's Boot Disks   

Kozee's Korner

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