Youre "repair route" wasnt quite right..
1st,with power off,remove battery,then set CMOS jumper pin from 1-2 position
to 2-3 position,leave for 5 minutes or so,then reset pin to default 1-2 position.
Wait additional 5 minutes,replace battery,start pc.
Youll need to reset BIOS on pc start,as the above info sets all to default (as it left
the mfg).Which also means date/time must be set,set BIOS to performance setting,then
return to BIOS menu & adjust for add-ins,etc.Once thru,set & save settings.