kaha lekheko cha 40$ parcha vanera. malai ramro sanga samjauna aaundaina tara CMOS battery jhika ani tyo battery ko side ma 3 pin jumper huncha 1& 2 being the default. tyo jumper jhikera aba 2 and 3 ma hala and restart the machine. 1 min pachi turn off gara. and put the jumper back to the default location that is 1 and 2. 

timile bujeu ki bujenau thaha vayena.... tara bujeko vaye try gara and it will work.