ok when i built my pc at Christmas i didn't realize i bought cheap motherboard risers. when i screwed them in they were cheap and broke. so there basically not in 100%. so only about 3 of them didn't break. i only have like 4/7 screws successfully in and the other 3 are loose / unstable . so its causing my rised screwes to rattle against the case whenever i boot up. ?( cpu fan causes vibration ) i dont know what to do! please help!