Hi, i gotta problem. my little cousin hit my computer with a chair on accident, and it turned off. when he turned it back on, it posted. but when i got home, i went to put in my password, and the windows 8 screen that you have to pull up was frozen. so i turned off the computer, turned it back on, and nothing. the lights in my fans turn on, but the screen doesnt turn on. it doesnt make any beeps, but then after about 5 min it starts beeping three long beeps. i reseated the memory and changed the sata cords that go to the hdd. i dont know what to do. and just in case it matters. i have an amd fx-4300. asrock extreme 3 mobo. 8 gigs of ddr corsair vengeance ram. and a 7770 video card. any suggestions?