wyse thin client

pls i need a help ,,,i have 3 wyse thin client...buh it showing password i cant format it or load a window in it, model no. dxod  .part no..909638-01l. sub-assy p/n no;849328-01l ... serial no . 860dm603950...pls i need someone to help m.......dis my mail unlineboy29@gmail.com....pls i seriously need someone to help m...