hi i got this 360 from ebay for £20 the seller said it had 3 red rings so i striped it tightend down the screws and it went to 2 red lights took the board out removed the heatsinks aplied new thermal paste then removed the x-clamps and replaced them with the bolts washers ect put it all back together and it went back to 3 rid lights now for the weird part i put a music cd and it done nothing then i turned the 360 off then back on then it read the disk and the ring went green then it went to one green light so its fixed now but i dont understand how the music cd made it work was the drive jammed can that cause rrod please help me out im very confused here thanks colin.