Question about IBM ThinkPad T30 2366 Notebook

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How do you remove/replace CMOS battery?

The CMOS battery in the T30 is located underneath the main battery.
I did the following:
- I removed the main battery
- Unscrewed the CMOS "container"
However I can't figure out how to disconnect the CMOS wire from the motherboard (I can't reach it).
I removed the keyboard to see if I could reach it from the front side but with no luck.

Any idea?

Thanks
Tony

Posted by on

  • ptrmnr Dec 03, 2008

    Thanks,

    but on this movie the CMOS doesn't seem to be connected to the systemboard



  • Anonymous Dec 11, 2008

    erorr 271 date & time

    how can I fixed the erorr

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Here is the link to a video. how to remove the CMOS battery
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-43064

Posted on Dec 03, 2008

  • Frank
    Frank Dec 04, 2008

    it is connected to the motherboard.

    look closer. there should be a 2 pin connector near where the battery is placed.

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CANT ACCESS BIOS


Remove CMOS battery (Large button battery on the main board). Removing the CMOS battery like the one shown in the picture causes the system to lose all CMOS settings; including the password. To do this, locate and remove the CMOS battery from the motherboard for at least five minutes, then replace the battery and turn the computer back on

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Were is cmos battery located


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Mar 07, 2014 | Acer 4220-2346 Notebook

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Bl51 motherboard


All laptops have a CMOS, or "Complementary Metal Oxide Semiconductor," battery.
The main purpose for the CMOS battery is to keep the system time, date and BIOS settings even if the computer is turned off or the main battery dies.
Individual Acer Aspire laptop models differ somewhat, but the general steps are the same when replacing a dead CMOS battery.Preparation

Read through the owner's manual for your particular Acer Aspire laptop to determine what kind of CMOS battery you need.
Purchase the battery through Acer or a local or online computer parts dealer.
Turn the laptop off and unplug it.
Also unplug any external hard drives, cameras or other external devices.
Turn the laptop over (bottom facing up), then touch something metal to remove static charge.
Removal
Remove the Phillips screws that secure the motherboard cover (refer to your owner's manual if necessary), then release the cover from the clips on the bottom of the plastic casing.
Lay the cover aside, then locate the CMOS battery cable on the right side of the motherboard. Unplug the cable, then remove the battery.
Installation
Plug the new CMOS battery cable into the motherboard.
Slide the battery partially under the laptop casing to hold it in place, then align the cover with the slots on the bottom of the laptop housing.
Replace the screws, then turn the laptop back over.
Settings
Plug the laptop in and turn it on.
Enter your BIOS (usually by pressing "F1," "F2," F10" or the "Delete" key) before the operating system loads.
Follow the BIOS prompts or refer to your Acer Aspire owner's manual to reset your time, date and desired system settings.
BIOS Reset
Any time the CMOS battery is unplugged for more than a few seconds, your BIOS will be reset to the default manufacturer settings.
If you make any changes to the BIOS that cause problems with your Acer Aspire, unplug the CMOS battery for 3-5 seconds to correct the problem.
http://support.acer.com/us/en/default.aspx


Acer aspire laptop battery replacement
http://www.youtube.com/watch?v=mQTZ1AUR0uw

Jul 24, 2013 | Acer Aspire 5100 Notebook

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Dell d340. need to enter admin password in bios to reorder boot sequence to accept usb first - its locked and i cant remember password. tried removing cmos battery and replacing but no good. help!


Try the backdoor password Dell

With a PSWD Reset Jumper Step 1Open the access panel to the password reset jumper if your Dell laptop has one. Consult your manual for the access panel's location. Some access panels have a tab you slide, while others are held in place with a screw.
Step 2Pry the plastic cover off the reset jumper with your fingernail. The reset jumper is a small pin port labeled "PSWD" with three pins. Put the plastic back onto the jumper over pin 1 and 2 instead of 2 and 3. Wait 90 seconds.
Step 3Pry the plastic off the reset jumper again and place it back onto the number 2 and 3 pins. Turn the laptop on. Repeat step 2 if the password is still present. Leave the plastic clip on pins 1 and 2 for a longer duration than last time.

Without a PSWD Reset Jumper Step 1Locate the reserve battery, also known as the CMOS battery, if your Dell laptop is not equipped with a password reset jumper. The CMOS battery's location varies among Dell laptop models. Consult your manual for the battery's location on your specific Dell laptop model. Many Dell reserve batteries are located underneath the main laptop battery. Remove the main battery and look for a sticker under it with instructions on removing the secondary CMOS battery.
Step 2Remove your Dell's reserve battery per the instruction manual or sticker located under the main battery. Removing the reserve battery resets the laptop's BIOS password. Wait 90 seconds, then replace the reserve battery. Reconnect the main battery.
Step 3Press the "Power" button to turn the laptop on.

Here is some youtube video with your problem:

http://www.youtube.com/results?search_query=dell+bios+password+reset+laptop&oq=dell+bios+password+reset+laptop&gs_l=youtube.12...2937.2937.0.5179.1.1.0.0.0.0.44.44.1.1.0...0.0...1ac.2.rXrXigbVpXM


Try also to call dell support in your country
They will be glad to help you out.

Good luck

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Hi cqs2000.

Do the following:

"To "Remove the CMOS battery form the computer!"

  • Shut-down the computer.

  • "Unplug the computer from the {Wall Out-let}.

  • Remove the Lithium battery from the "Notebook."

  • There is a compartment (underneath) the "Notebook that 'store' the CMOS battery."

  • "You will need a {very small Phillips screwdriver}.

  • paul7of9_182.jpg Remove the CMOS battery for: [30 minutes].

  • !Important: If you have to do it again?

  • Remove the CMOS battery for a {'longer amount of time'}.

paul7of9_181.jpg Replace the "CMOS battery."

  • Next, "Only plug-in the "Power Adapter" into the computer.

  • "Do not - replace the "Lithium battery!"

  • Once you have completed these 'task'.

  • "Restart the computer."

  • "Press the [F2] key, to 'enter' the CMOS / BIOS Setup!"

  • Next, 'reset' (all) "Values to the Default Settings."

  • "Press the [F10] key to 'Save' the changes!"

!Important: "Take a 'moment to rate the help', so I can get 'credit' for the work.

Thank you!" - paul7of9

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I'm trying to enter set up. It is asking for password. I don't have one have do I get in?


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Feb 20, 2011 | HP PC Laptops

1 Answer

Removed my CMOS battery, but the BIOS settings won't disable


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1. On the motherboard there is a small watch battery. Remove this battery along with the power cable from the power supply. Hold down the power button to fully discharge the system. Wait 2-3 minutes then reinstall the battery and plug in your system. Your reset is now complete 

2. Some motherboards have a 3 pin jumper by the battery. Lets say that the jumper is on pins 2 and 3. Remove the jumper while the machine is OFF and place onto pins 1 and 2. Power on your machine for a minute. (Note: Your system will not POST). Shutdown your machine and put the jumper back to pins 2 and
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There might also be an option within the BIOS to "Load Defaults" if that is all you are looking to do
please see this http://www.11a.nu/software/bios-pc-bios-security-and-maintanance-toolkit/
hope it helps!

Nov 04, 2008 | IBM ThinkPad T30 2366 Notebook

2 Answers

Ibm think pad t30


you need to be techy on this one. you need to open the laptop. before you do that, be sure to remove all source of power (ac adapter and battery). press and hold the power button to drain all excess power. check the motherboard and reseat the CMOS jumper. it looks like a tiny pin. after reseating the jumper, reconnecting power and turn on the laptop.

i hope this helps.

Sep 16, 2008 | IBM ThinkPad T30 2366 Notebook

2 Answers

T30 still won't boot after fan replacement


One of your memory slots might be bad as I'm assuming you tried both memory chips in the known working slot.
I found setting the boot up sequence in BIOS is better than using F12.
Set your BIOS to boot the CDROM first. I suspect the hard drive has failed or has a problem. Do you have a floppy boot disk? Lenovo has PCDoctor bootable diagnostics on their website. You may have inadvertently bent a pin inserting the hard drive. Your CMOS battery could be dead but since that was untouched I would be surprised.

Sep 08, 2008 | IBM ThinkPad T30 2366 Notebook

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