Just today i had apart my laptop to replace the fan it went out on me so i had just put everything back together and put the battery in and plugged the a/c adapter in and started it up at first the cap light blinked 3 times so i looked that up and found my memory was seated wrong so i restarted it after that and now its just a black screen and i tryed using a different monitor via hdmi and vga that still didnt give a display so i had drained the power from the motherboard but that didnt help i tryed that a few times in between stuff and everything is connected i do have a few extra screws left over idk where they all go only a couple, but that shouldnt effect whether it runs fine or not is the motherboard damaged or the gpu or cpu or any other things i could try? thanks in advance