Question about IBM ThinkPad T41 Notebook

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Cmos how do you clear the cmos and where if any is the cmos jumpers. i took the both batteries out for two days now and still can get it to start, it show a little computer screen & a lock

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  • banker505 Jun 26, 2008



    The problem started when i turned on the laptop, it booted pass post started win xp & then flashed blue screen (error), it restarted itself with a power on password lock.

    I removed the mian and the backup (cmos) battery for two days & still locked up

  • Eric Waggoner May 11, 2010

    By both batteries, do you mean main and CMOS, or do you have two main batteries?

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Is it asking for a password and did it just start doing this? Please give a little more info to the problem you're trying to fix. Some problems with IBM can be more difficult than others.

Posted on Jun 25, 2008

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1 Answer

Were is cmos battery located


removing cmos battery doesnt work no matter how long you leave cmos battery out been there done that , you have to locate cmos jumper on motherboard , remove main battery & memory cards , peel back clearish foil on motherboard near where memory cards install , should see jumper points on motherboard , take bread tie touch jumper contact leave main battery out stand up like book plug in power adapter , and turn on only until boot screen then shut-off , install memory card , remove jumper and try starting laptop , if it hasnt cleared password , remove memory cards and try jumping it again

Mar 07, 2014 | Acer 4220-2346 Notebook

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Clearing cmos password or cmos clear jumpoer location.... where can i find?


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 Software:
I have found that using Dogber1's Dell Password generator is a great solution to this problem. It is free and takes approximately 10 seconds to download from his site.

B. 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.

Good luck

Please Rate FIXYA

Mar 29, 2011 | Dell Inspiron 1300 Notebook

1 Answer

Forgot the password and cannot start my laptop


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



Hope this helps


The most common way that most of us know on how to reset or clear the BIOS password is to physically remove the power from the computer by disconnecting the power plug and then removing a battery for 30 minutes from the motherboard. Another way is to reset the clear CMOS jumper on the motherboard itself. Both of the 2 methods mentioned works because most motherboards use a battery to sustain the BIOS/CMOS settings for the motherboards PROM chip. So by cutting off the battery power, the BIOS/CMOS settings will be erased.

hope this helps

Jan 25, 2011 | PC Laptops

3 Answers

I FORGOTT THE BIOS PASWORD FOR MY NX9010 HP . WHAT CAN I DO?


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/

May 25, 2010 | HP NX9010 Notebook

2 Answers

Cant remeber my bios password


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/

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2 Answers

I need to reset the bios password on my metrobook ltplus


At his time you need to open the back cover of you laptop to solve the problem. You need to reset the CMOS battery of jamper to clear BIOS password. To open the back cover you need to remove first the laptop battery after that fine and remove some screw.
Once you have already remove the screw and the cover you can see there a small circle CMOS battery you need to remove is to clear all stored password in CMOS memory. You can also see there a jamper near the CMOS battery just remove that and turn on your laptop with in 10 seconds and turn off. Reinsert the jamper with the same position.
Now the CMOS password are already clear just turn on your laptop first before you close the cover.

Oct 25, 2009 | MetroBook DT Plus PII-300 (MB-DT-P300) PC...

2 Answers

Compaq 8150p bios password need to be reset. Is the cmos battery soldered on or unplugable.


The BIOS battery could be a button type battery or it could be a battery with a plug-in lead.

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Did you notice a PWD clear jumper while you had it open?
OR CMOS clear jumper?

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Remove bios password


There are lots of tools/software available to reset bios password. Just google for "reset bios password" and you will find one of them, else just open your back side of your notebook. Open the screws and remove the bios battery (a circular shaped sitll battery). If possible change the battery with a new one or keep that battery out of laptop for some time. Now start notebook without the battery and shut down.Then reinsert the battery to laptop and start again. The password should be resetted by this process.

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