I hope this is the right Exchange to ask this:
On Saturday, our client's dedicated Windows 2003 Web Server suddenly shut down and was down for around ten hours while the hosting company restarted the machine several times, then replaced the power supply and finally put the drives into a new server. Looking through the event logs, it's obvious that someone/thing was trying to RDC into the server, with no luck, but could that actually take down a server? I ask because this isn't the first time this machine has shut down suddenly and with no apparent reason so I thought I'd ask. I don't see anything in the logs that looks odd aside from the constant RDC attempts, which get forcibly closed by the server, and you have to be at a certain IP address in order to have access in the first place, so it's really dumb for them to try.