It is a HP9000 server, running Unix V11.1 I think it is.
The server overheated a bit I think - the aircons broke down over the weekend. We couldn't log into it, the network card kept disabling itself. We managed to get into the maintenance processor (seperate NIC) and saw the alert in there (my boss saw it). Probably in a log of some kind or event viewer - not 100% sure.