Shut down my computer, when I turned it back on I heard a crack sound and nothing happened. I figured it was a blown capacitor in the PSU, didn't find anything on the motherboard. When I took apart the PSU this is what I found - not a blown capacitor (I don't think) but a blown chip?
Last photo is the part that was blown off, it appears. I must say, the magnifying glass app for my phone is pretty neat-o. Really hard to find what happened initially, I didn't see any capacitor leaks or any other problems except this.
My PSU is a OCZ ModXStream 700W. Read some people who've said to stay away from this one (of course, way after I bought it.)