Ok, i bought an xbox 360 off ebay for $20 and in the description it said all that was wrong was the console would not read or play games. well i got it yesterday plugged it all up it turned on to the dash and in a few minutes 3 red rings. i took it apart and noticed that someone had tried to remove and replace the thermal paste before, so i re-applied some more thermal paste and fitted the heatsinks with the washer method. turned it on and it worked again, but the dvd still will not play, so i replaced the dvd drive with another which was the same model and changed the boards, and it still won't read? is thier a way of checking if the board is the one for the motherboard? oh and i got the red rings again !!! thanks.