I came into the office the other day and the case fan on my PowerEdge server was spinning like hell. The room temperature was the same as always and everything else seemed kosher. I don't have anyway to check the temperature of the CPU from the BIOS, but I suspect that it is fine. I've opened the side of the case to allow for more airflow, but the fan still spins like hell. I wouldn't bother with it, but it is so loud its a nuisance. Any ideas?