Question about IBM ThinkPad R40 2722 Notebook
I HAVE DATE AND TIME PROBLEM IN THINKPAD R40.I M ALREADY CHANGED THE CMOS CELL AND NEW BIOS UTILLITY INSTALLED IN LAPTOP BUT PROBLEM STILL SAME. PLZ GUIDE ME.AS SOON AS POSSIBLE THANKS.
Posted on Oct 11, 2010
You need to change your cmos cell on motherbord circuit for that open back side cover and then you can see cmos cell on motherbord circuit.Change it pur chase new cmos cell.
Your old cmos cell has not enough waltage so your bios settings are not saved when you turn off the power.
Posted on Jul 16, 2009
Actually, the CMOS battery is located under the keyboard on this model. Simply unscrew the two screws on the bottom of the laptop (they have alittle picture of a keyboard next to them). Lift up the keyboard and down towards the touchpad will be a battery wrapped in black with two wires coming from it. Replace this (ebay search r40 cmos battery about £5 delivered)
Posted on May 05, 2010
It will be the cmos battery thats gone, thats the internal battery that holds things like the date and time, on the larger macines its normally a coin battery, something like a cr2025 or simular, on some of the later machines they may have different ones, its probably esy to get to do a search for the cmos battery change - you may find the right one here - coin batteries
Posted on Jul 16, 2009
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Posted on Jan 02, 2017
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