Question about IBM ThinkPad T40 2373 Notebook

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I'm trying to clear the bios password on my girlfreinds thinkpad t40.... I've removed the cmos battery and was going to leave it out for an hour or so ....... will this work?

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An easier solution is to use a backdoor password for your laptops' model to clear out the bios password. For IBM, the backdoor password is merlin

Posted on Dec 03, 2008

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1 Answer

I need to rest password in bios


Hi,
Removing the RTC battery and leaving it uninstalled for 5 or more minutes causes all passwords and CMOS settings to be cleared. BIOS password can be removed by temporarily disconnecting/ removing the RTC/ CMOS (Coin-cell) battery from the motherboard.
Disconnect the coin-cell battery from the system board and it will reset the BIOS to its default setting and the password would be gone.
Please Refer to Page 29, 106 & 79 of the REPAIR MANUAL IBM T40 for Battery removal, keyboard removal and RTC battery removal instructions.
The Backup Battery (RTC, CMOS) is located under the keyboard. So you have to remove the keyboard to access the battery. The above Manual from IBM shows the exact method/ instructions and pictures for laptop dis-assembly for the purpose.
If you are comfortable with working inside such electronics, you can't do it yourself, or else you may seek help from local laptop service professional.


Hope it helps! Good Luck! Thanks for using Fixya!
CreativeTECH

Jun 21, 2011 | IBM ThinkPad T40 2373 Notebook

1 Answer

I am removed my cmos battery but still my bios password not cleard How can i reset my bios paasword.


I believe the CMOS battery must stay disconnected for 24 hours before the BIOS password will clear.

Mar 30, 2011 | IBM ThinkPad R51 Notebook

2 Answers

Need to get past the bios password on my thinkpad T40. What can I do?


write it down all the bios settings. and remove laptop keyboard by removing screws back side of the laptop (small embosed picture indication remove those screws) and just lift the keyboard and search for cmos battery, see below picture , just unplug the battery and keep unpluged for minuite or two. and connect the battery. fit all the opened cover and restart . best of luck

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Jan 15, 2011 | IBM ThinkPad T40 2373 Notebook

2 Answers

A password bois in thinkpad t60 et merci


This information is intended for experienced users. It is not intended for basic users, hackers, or computer thieves. Please do not try any of following procedures if you are not familiar with computer hardware. I'll not be responsible for the use or misuse of this information, including personal injury, loss of data or hardware damage. So use it at your own risk.
A. By Using the Motherboard Jumper:
In most motherboards CMOS battery is soldered, which makes it difficult to remove the battery. In this case we use another method.
Almost all motherboards contain a jumper that can clear all CMOS settings along with the BIOS password. The location of this jumper varies depending upon the motherboard brand. You should read your motherboard manual to check its location. If you don't have the manual then look for the jumpers near the CMOS battery. Most of the manufacturer label the jumper as CLR, CLEAR, CLEAR CMOS, etc.
When you find the jumper, look carefully. There will be 3 pins and the jumper will be joining the center pin to either left or right pin. What you need to do, is remove the jumper and join the center pin to the opposite pin. e.g. if the jumper joins center pin to left pin, then remove it and join center pin to right pin. Now wait for a few seconds and then again remove the jumper and join the center pin to left pin.
Make sure to turn the PC off before opening the cabinet and resetting the jumper.

B. By Using Software:

I have found that BIOS/CMOS Password Recovery Tool is the most effective.:
BIOS/CMOS Password Recovery Tool is a program that works instantly to remove any lost or forgotten BIOS/CMOS password. Simply boot your PC to DOS and execute the program, and get access to forgotten BIOS/CMOS passwords in just seconds
BIOS/CMOS Password Recovery Tool Service: http://www.biospasswordrecovery.com/

Apr 24, 2010 | IBM Lenovo ThinkPad T60 ThinkPad T60P...

3 Answers

Remove Bios Password ibm t40


ON YOUR WINDOWS ENVIRONMENT open command prompt, or MS DOS prompt type this:

debug
o 70 2e
o 71 0
q

Then restart...

Oct 21, 2009 | IBM ThinkPad T40 2373 Notebook

1 Answer

I CANT GET MY IBM THINKPAD TO UNLOCK


it depends on what you want to unlock:

for the BIOS, just remove the battery for 24hours then the BIOS will reset / else have the BIOS battery removed for at least 1 hour.

for more information:

http://sodoityourself.com/hacking-ibm-thinkpad-bios-password/

Oct 16, 2009 | IBM ThinkPad T40 2373 Notebook

1 Answer

Need help t40 bios.lost my password can i buy a disc?


take out the cmos battery and put it in again.let me knw if that works

Sep 20, 2009 | IBM ThinkPad T40 2373 Notebook

4 Answers

Forgot BIOS password, so please help to disable this on fujitsu S7110 lifebook.


There is probably a jumper but if you disconnect the cmos battery and leave it for a few hours or overnight it'll have the same effect. Make sure you take the main battery out too.

Jul 31, 2009 | Lenovo ThinkPad X61 Notebook

1 Answer

Can't get pass the blackscreen password


That is the BIOS password





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

Aug 15, 2008 | Computers & Internet

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