Do i need to change the CMOS battery?

[leeroyMarv]

Everytime at the black BIOS startu screen (on my IBM laptop) i keep getting the following two errors; "163" and "173" one means the time and date needs to be be set and the other means something about configuration data being lost. The worst error though is the following; "I9990305" which means no bootable device was found. I dont understand what going wrong, this happens everytime the computer starts, but one i set the time and date, and reset at the no bootable device error, the laptop wroks fine and goes into windows normally. How do i fix this? Does the CMOS battery need to be replaced? Any help appreciated

 

[dragon2309]

My first guess would be the CMOS battery, it sounds very much like it. For reference CMOS batteries ar usually CR2032's (in desktops, not sure in laptops).

dragon

 

[The_Other_One]

Agreed... That does sound like a CMOS battery issue... Try to find a manual for the laptop. THey can sometimes use some rather odd batteries.