Home Repairing Laptops Lenovo - IBM Replacing IBM T20 (T21, T22, T23) laptop's BIOS battery
Replacing IBM T20 (T21, T22, T23) laptop's BIOS battery PDF Print E-mail
Tuesday, 07 December 2010 21:23

 

It may be that you already saw a couple of screens as shown in the first picture. It can display error codes like 0271, 0251 or Resource conflict. It is probably because  the Bios battery doesn’t hold charge anymore and must be replaced.

Messages "System CMOS checksum bad", "Recource conflict", "Check date and time settings"

 

 

 

 

 

 

 

 

 

Message "Check date and time settings"

 

Inside IBM T20 BIOS

 

The BIOS battery is located beneath the main battery

 

View of IBM T20 BIOS battery inside the laptop

 

IBM T20 BIOS battery

Last Updated on Saturday, 26 November 2011 11:06