My HP ML116 G5 is dead. It had a "thermal Violation" when the heat sink mounts snapped while I was on the company away weekend. Even a new heat sink can't seem to revive it for more than a few minutes.
HP microserver seems to be the way to go. Recommended by everyone at work.
About 25% power consumption of the ML115, smaller and quieter, and I will stick 16Gb of RAM as compared to the 6Gb I had in the ML115.