My V3 bolt has shutdown on me twice since I have had it. The system is on a UPS, and we have not lost power recently. The first time it shutdown on me, I was not around. This I was, and the machine was just sitting idle. The temps had been running between 38c-44c. Of course, the fan was running. After the shutdown, I unplugged it, and felt the heat sink. It did not feel hot. It was warm at best. When I tried to power it back on, it did not start up right away. It took several tries. When it booted, the fan did not turn on right away. In fact, it turned on and off a few times, then just stayed on. The temps were less than 40c Has any one experienced this?