Put too much thermal paste on the cpu (when I was upgrading), oozed out and fell into the pins on the motherboard. I tried removing the paste from where it spilled onto and ended up bedning a bunch of pins. Needless to say, motherboard was useless after that Had to use a backup, Gigabyte, that I hate soooooo much! onboard sound died within a few months...never again Gigabyte mobo's