Hi, I have a laptop. When i hit the power button the light turns on, the fans spin for a few seconds and then nothing. it just sits on a black screen. sometimes the screen looks like its lit up and black other times it looks off. either way it just sits there with the power light on forevor. I was told its probably an issue with the motherboard. I just got it quoted at 390$ seemed pricey so i'm here looking for some help. I know just enough about computers that i could probably order and replace it myself but i dont know how to get its specs without turning it on. HELP! Thank you