... 4.Warranty:45days Laptop motherboard/mainboard CQ60 517837-001 refurbished system board for hp/compaq All products are almost new, fully ... such as turps, dust, tin soldering or other dirty mark on board.2. Check whether lack of electronic insulation gummed paper.3 ... SD connector, PC, 3.3V COMS battery, Battery whether charge and discharge, Full running 3D, Restart system at least two times. Contact us ...