this one came, with a very weird issue...it would turn on, then after a minute or so, would freeze and keeps the cpu heating up, while no video or usb activity meaning braindead...after that i took the board out of the case, and found C7701 knocked down, so i replaced it. i put everything back together and then i noticed that now, it would turn on, i can click on the trackpad, but soon after shutdown outta nowhere, i cant click. dunno where to start on this one...