... board.2. Check whether lack of electronic insulation gummed paper.3. Check whether lacks of fittings, rust, rot, heat elimination chassis ... , Network connection, Voice, Mouse, Keyboard, Dial, USB, SD connector, PC, 3.3V COMS battery, Battery whether charge and discharge, Full running ... a position to supply brand laptop LCD, keyboard, battery, and adapter. laptopmotherboard for hp CQ511 538408-001