Question about IBM ThinkPad T30 Motherboard 91P7695 - 26P8205

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How do i reset the CMOS battery/ - IBM ThinkPad T30 Motherboard 91P7695 - 26P8205

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Its easy to reset the CMOS battery..
all you need to do is to remove the battery for at least 2-3 mins then reseat it again.

Posted on Sep 09, 2010

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1 Answer

What is BIOS password?


No way to know YOUR bios password.
If you've neverassigned a BIOS password, press enter without inputting anything.
If you have a BIOS passwoed, you can reset BIOS rmoving CMOS battery



laptop cmos battery






Tutorial How to replace the CMOS battery in your laptop




How to Clear Your Computers CMOS to Reset BIOS Settings




How to clear an unknown BIOS or CMOS password

Apr 01, 2015 | Computers & Internet

1 Answer

Reset cmos


Removing the CMOS battery for 15 mins will reset the CMOS.
The CMOS failure most likely is caused by a flay CMOS battery. replace the CMOS battery will fix this problem.

Oct 24, 2012 | IBM ThinkPad T41 Notebook

1 Answer

Resetting cmos


The best way to RESET the BIOS back to the factory defaults if you do not know the Reset jumper or there isn't one is to remove the CMOS/BIOS battery and wait for approx. 20 mins for the charge in the BIOS to discharge.
If you cannot wait that long then short out the battery terminals on the motherboard with a paper clip.
Replace the BIOS battery, go into the BIOS setting and set the date and time etc.

May 23, 2012 | Computers & Internet

1 Answer

Toshiba satelite bios password recovery


On laptops there isn't an easy way to recover passwords in the BIOS. Sometimes you can reset the password. Other times, you'll have to contact the manufacturer to get it reset.

Some laptops will allow you to reset the BIOS password by pulling the CMOS battery. The CMOS battery is typically located under one of the bottom panels for access to the memory or wireless cards. Some models have the CMOS battery connected by a small wire with a clip connector, others have the CMOS battery placed directly on the motherboard with a metal retainer clip.

Here is a link to a removable CMOS battery with wires: http://www.laptopparts101.com/wp-content/uploads/2008/12/removable-cmos-battery-560x420.jpg

Here is a link to a CMOS battery that is directly on the motherboard: http://www.laptopparts101.com/wp-content/uploads/2008/12/coin-cmos-battery-560x420.jpg

On a laptop, if you unplug the power cord, remove the laptop main battery and then remove the CMOS battery - and then wait at least 5 minutes, some models will blank out the BIOS password. Not every BIOS password can be erased by removing the CMOS battery - but if you are comfortable working on the laptop parts it is worth a try.

If removing the CMOS battery doesn't fix the BIOS password, the only option left is to contact the manufacturer for a reset. (If you took your laptop to a certified technician - they would just contact the manufacturer for the reset, and then bill the time to you!)

The number to contact Toshiba is 1-800-457-7777.

Nov 19, 2011 | Toshiba Computers & Internet

2 Answers

I started my pc with no software and os loaded and I got the message: WARNING: CMOS checksum Error My motherboard is: DH61BE and the bios ver. is BEH6110H.86A.0020.2011.0218


This is an error that occures when the BIOS has lost the CMOS settings. This usually happens if the CMOS battery has drained completely.
The solution is to first try to reload CMOS settings. you can do this by pressing DEL at startup and getting into BIOS. then find the "reset to defaults" setting and reset the CMOS settings. This should solve the problems.
If that doesnt help, then you would have to change the CMOS batter on your motherboard. This is a quite simple task. It is a standard battery and is quite cheap.
Also some motherboards have a CMOS battery connector jumper, refer to your motherboard manual and check if you have this and reset it.
These are all simple tasks, but get someone to help you if you don't feel comfortable doing it yourself.


--------- Please rate the answer if it was helpful. Thank You!

May 22, 2011 | Computers & Internet

1 Answer

How to clear bios with password


Hi.
You may reset the BIOS password by removing and re-inserting the CMOS Battery.
The CMOS Battery should be present on the Motherboard.
The CMOS Battery will be in the shape of a coin.
You may just remove and re-insert the CMOS Battery.
This should reset the BIOS password.
Hope this helps.
Please feel free to contact for further information and assistance.

Feb 01, 2011 | Computers & Internet

2 Answers

How to reset cmos or bios


Hello Friend,

There are a few ways.
The easiest way is to enter the BIOS setup screen, and select the option to reset to default settings, it should be easy to find or it would be on the save changes sections.

If you can not access the BIOS setup screen, it will take physical access to the computer's motherboard. This means you will need to open up the computer case. From here there are a few options that you can do.
change the the CMOS jumper to reset.
Press the CMOS reset buttion
Or remove the CMOS battery for a few minutes.
Please note that not all manufacturer have a jumper setting or cmos reset button. Also a CMOS battery looks like a button battery.
Also if you are going to open up the case, make sure the computer is off, unplugged, and if this is a laptop the battery must be removed. Good Luck!

Dec 20, 2010 | Computers & Internet

1 Answer

BIOS reset


By resetting the CMOS battery all you need to do is to teardown your laptop and have to remove and reinstall the CMOS battery. And for the replacement of the CMOS battery of your Samsung laptop just call SAmsung technical support so that they can give you the exact model of the CMOS battery and where you can have the battery. Thank you.

Oct 10, 2009 | Samsung X05 Notebook

2 Answers

How can i reset CMOS/BIOS password for HP compaq tc4400 laptop i have hp 500 notebook and i forget cmos/bios password . i remove cmos battery . but dont solve it . how can i solve it


how can i reset CMOS/BIOS password for HP compaq tc4400 laptop i have hp 500 notebook and i forget cmos/bios password . i remove cmos battery . but dont solve it . how can i solve it

May 04, 2009 | HP OmniBook 500 Notebook

2 Answers

Need to reset bios password for acer 4620 laptop. tryed removing battery on mb . no good . ? passmord bios


Try removing the main battery and the CMOS battery (ie the battery on the mb). If you don't want to wait for 1/2 hour for the CMOS to discharge then short out the CMOS battery connections with a bent paper clip.
Then without instralling both battery, power up your laptop, you should then get into the BIOS, power off and re-install your batteries.

Aug 19, 2008 | Computers & Internet

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