Hints:



Every laptop is made slightly differently so you will have to get directions from the manufacturer on how to access the motherboard. The laptop manual will probably include directions for how to do this and how to replace the CMOS battery.

Compatibility :IBM Thinkpad R40 Series 


R40-2681, R40-2682, R40-2683, R40-2722, R40-2723, R40-2724  
R40-2892, R40-2893, R40-2896, R40-2897, R40-2898, R40-2899  



IBM ThinkPad R40e Series

R40e-2684, R40e-2685
IBM Thinkpad R40 Series 


R40-2681, R40-2682, R40-2683, R40-2722, R40-2723, R40-2724  
R40-2892, R40-2893, R40-2896, R40-2897, R40-2898, R40-2899  



IBM ThinkPad R40e Series

R40e-2684, R40e-2685

IBM FRU: 91P8199 92P0991

Quantity: 1 pcs