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Posted on Jan 02, 2017
Provided the laptop booted (albeit to requiring bios set up), all is well. The data such as time needs to be re-entered manually, because since the battery is required to maintain volatile memory, when the battery goes flat or is removed, the data is lost. Re-enter all data, including boot sequence (i.e. IDE 0, CD-ROM/DVD)! exit saving to CMOS. should reboot to OS.
Posted on Jan 31, 2008
The C-mos needs replacing. On the T20 series the c-mos is under the battery or a panel on the bottom of the machine, it looks like a large watch battery in a yellow sleeve. Once you've found it, you will see the two wires leading to the connector. Finding it is half the battle. In order to reach the connector you will have to remove the keyboard. Once you disconnect it, it will come out through the bottom. You can purchase a new one at Bestbuy.
Posted on Jun 30, 2008
There are 2 ways you can reset your bios.
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
3. Your reset is now complete
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!
Posted on Nov 04, 2008
For that you need to reset factory defaults settings for bios.
For reset bios u have to open back side of your laptop then u find motherbord circuit there.
pull cmos cell on motherbord for 15 minute then it reset to defaults.
Also u can reset with jumper settigns read carefully on mother bord there is 1 jumper near cmos cell u read there " bios reset or clear"
It is on 1-2 position right now set it in 2-3 position then power up then all bios settings are reset.
then again set it in 1-2 its original position.
Posted on Jul 29, 2009
Usually this means a hardware failure. I would suggest reseating the CMOS battery overnight to reset the system. Also you might want to replace it as well. It could also be more serious such as a motherboard component failure.
Also IBM error code # 189 according to Scott Mueller's Upgrading and Repairing PC's (8th edition) - "Excessive incorrect password attempts." Is there a password on your CMOS ?
Also try hitting ESC key on boot to bypass. Good luck!
Posted on Sep 23, 2009
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