How to clear forgotten BIOS password
Version: 32.4
Revison: 126 Buidl 54
How to clear forgotten BIOS password
Rules and Regulation: by reading this article, you shall not use it to abuse or neglect other users’ computer.
This article is provided for users who would like to reset their forgotten password only!
Introduction: this article will help you to reset your ‘Bios’ password.
Part One: Security Precaution
Warning: When you’re inside the computer please be aware of ESD!
This is one of the few things an individual can do to damage or destroy his or her computer or hardware components.
It’s also like a shock you received by rubbing your feet on the carpet and touching something metal.
ESD can occur when working in your computer and will cause components to malfunction or die.
ESD = Electro – Static – Discharge.
Guides: how to prevent ESD…
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a.] Zero Potential - Most importantly, make sure you and the computer are at Zero Potential by continuously touching an un-painted metal surface of the chassis or the computer power supply case.
b.] Standing - It is also very important that you are standing at all times when working on the computer.
Sitting on a chair can generate more electrostatic.
c.] Cords - Make sure everything is removed from the back of the computer: power cord, mouse, keyboard, USB cable, etc.
d.] Clothes - Make sure that you’re not to wearing any clothing that conducts a lot of Electrical Charges.
Example: wool sweater
Weather - Electrical storms can increase the ESD risk; unless absolutely necessary, try not to work on a computer during an electrical storm.
Accessories - To help reduce ESD and help prevent other problems, please remove all jewellery, watches and other metallic items.
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Part Two: Reset Bios password
First of all, the location of the “jumpers or dipswitches” may vary. But, here are some general locations where these jumpers / dipswitch may be located.
a.] 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.
b.] By the CMOS battery - Some manufactures will place the jumper to clear the CMOS / BIOS password by the actual CMOS battery.
c.] 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.
d.] Under the keyboard or bottom of laptop - If you are working on a laptop computer 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.
e.] 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.
Tips: When you’re looking for the jumper / dipswitch, the label of that switch could be anything!
So, in most cases it will be labeled: “CLEAR – CLEAR CMOS – CLR – CLRPWD – PASSWD – PASSWORD – PWD.”
Looking for the Jumpers and Dip Switches
Jumpers are tiny rows “prongs” that look like forks. They very often come in threes but can be any number. There will be (or in some cases not) small plastic caps covering the jumper prongs. When two jumpers have a plastic cap over them they are connected and an electric circuit is “closed” meaning that electricity is flowing through. When the jumper is off, the connection is “open” meaning there is no electricity flowing. This flow (or lack of) of power is a signal to the motherboard to do something. The plastic cap can be removed with a tool or your fingers if you have sharp fingernails.
The jumpers should have numbers under each prong (1-2-3) and a name next to them like J1, J2, J4… or JP1, JP2, JP3…
Notes: If you are lucky, your motherboard will have a BIOS password reset ‘Dip switch’ or ‘Jumper’.
Resting the password will allow you enter ‘BIOS’ and change the password or enter BIOS and alter the configurations.
Not all motherboards have this switch.
Find the “Clear CMOS” or “Reset CMOS” Jumper.
There will be one jumper or [a dip] called “CMOS” or “Clear CMOS.” This switch will allow you to erase ALL settings on the motherboard and set them to the original – manufacturer’s [default] settings.
This switch has two values: “Clear” and “Normal.” In typical, the switch should always be set to “Normal.” To reset the motherboard, you set the switch to “Clear”; switch on the PC; let it boot-up; turn it off; put the switch back to “Normal” and turn the PC back on. Finally, just re-enter BIOS and re-configure it.
Simplified version: On the computer motherboard, just 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 be cleared.
When it’s cleared, turn the computer off and return the jumper or dipswitch to its original position.
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Notes: The placement of the CMOS jumper varies, but it’s always a low number like “JP2 or JP4”. If you’re lucky it will be marked as “CMOS” or “CLEAR CMOS.”
Just look for ones that have three prongs. But, if it has two, four or more it’s probably not the CMOS reset. So, please be careful and read the instruction manual if you’re stuck!
Hints: Most of the mother board have pin 1 and 2 connected for normal use, 2 and 3 connected to clear the CMOS.
Tips: For more information about your computer or notebook motherboard, please download the manual from your company website.
For example, my notebook is an ASUS, so I’ll be downloading a manual from: http://asus.com.
When you find the CMOS switch…
1.] Set it to “reset” or “clear”
2.] Turn the PC on, and let it boot.
3.] Turn the PC off.
4.] Put the switch back to “normal”
5.] Boot up again and enter BIOS.
6.] Configure your settings
7.] Exit and save your settings.
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