How to Reset/Clear/Remove the BIOS or CMOS Password?

How to Clear a BIOS or CMOS Computer Password
 : 

BIOS passwords are used to protect your computer from some unwanted things or add some extra security to computers. You can either set a password to prevent access to BIOS settings or to prevent PC from booting.

But sometimes it can be happened that you have forget your own BIOS password or someone changes your system BIOS password intentionally, you can not log into the computer. In the case of such problems, you will need to reset the BIOS password.

I will explain to you how to clear/reset the BIOS/CMOS password.

Do the following steps :

1. Power off the computer and make sure that it is unplugged.

2. Open the Computer Case

3. Now, observe the motherboard.

4. Locate the flat, circular and Silver Metallic CMOS battery (3v). Make sure to power-off the computer, unplug the all power cables and unplug any devices if they are powered.

CMOS Battery:

This battery is 24 x 7 power supply for the BIOS, which is used to run the system clock will the main power is off. It also initiates the booting process when power is switched on.

5. Carefully remove the CMOS battery from the motherboard.

6. Here wait for 120 seconds. This will flush the CMOS memory which stores the BIOS password and all other configuration and then replace it back to it's original position.

7. Now, when you start your system they should warn you that the CMOS configuration could not be found. You can either reconfigure it yourself or restore it defaults.

Note:
You have to set the time of your computer when you start the system again.

Using a Backdoor BIOS Passwords:

Some BIOS manufacturers build in backdoor passwords. The backdoor password is a BIOS password that works no matter what the BIOS password is set to. These passwords are typically used for their own technicians to use testing and maintenance, so they can access the BIOS when the hardware is being serviced.

BIOS password depends on what BIOS the computer has. Common BIOS include AMI, Award, IBM, and Phoenix. Several other BIOS exist, but these are the most common.

There are different ways to reset the CMOS, You may need to try quite a few passwords before you find one that works

There are many default common passwords, here's a few:

Note : These passwords are case sensitive.

AMI BIOS Backdoor Passwords:

A.M.I.

AAAMMMII

AMI

AMI?SW

AMI_SW

BIOS

CONDO

HEWITT RAND

LKWPETER

MI

Oder

PASSWORD

Award BIOS Backdoor Passwords:

01322222

589589

589721

595595

598598

ALFAROME

ALLY

ALLy

aLLY

aLLy

aPAf

award

AWARD PW

AWARD SW

AWARD?SW

AWARD_PW

AWARD_SW

AWKWARD

awkward

IOSTAR

CONCAT

CONDO

Condo

condo

d8on

djonet

HLT

J256

J262

j262

j322

j332

J64

KDD

LKWPETER

Lkwpeter

PINT

pint

SER

SKY_FOXSYXZ

SKY_FOX

syxz

SYXZ

TTPTHA

ZAAAADA

ZAAADA

ZBAAACA

ZJAAADC

Russian Award BIOS Passwords:

%øåñòü ïpîáåëîâ%

%äåâÿòü ïpîáåëîâ%

Phoenix Backdoor BIOS Passwords:

BIOS

CMOS

phoenix

PHOENIX

Other Manufcaturers Backdoor Passwords:

(Manufacturer Name – Password)

Biostar – Biostar

Compaq – Compaq

Dell – Dell

Enox – xo11nE

Epox – central

Freetech – Posterie

IWill – iwill

Jetway – spooml

Packard Bell – bell9

QDI – QDI

Siemens – SKY_FOX

SOYO – SY_MB

TMC – BIGO

Toshiba – Toshiba

VOBIS and IBM – merlin

That's all.

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CAUTION! : These tips and tricks are advanced, we can not guarantee that you will be able to solve your problem that result from using tips and tricks incorrectly and is used at your own risk.

Category: Tips & Tricks

Operating System : Windows