alright so this problem started a while ago my computer would freeze up and/or restart randomly on me on a fairly regular basis without any similarities with what was runnin or anythin like that at the time. so since i had no idea what was wrong with it i took it to the computer repair office at my college and they told me i had a bad motherboard and it needed to be replaced. so that was no big deal it was still under warranty. i got the new motherboard, just recently put it in and it still freezes up on me. not like a normal freeze though it makes a really odd screeching like sound through the speakers at the same time that it just stops working. anyone had this problem before or have any idea what it might be? i would appreciate any and all suggestions.