One of the FANs (the one cooling the hard drives I think) in our IBM X3200 M2 started running at full speed and make a loud noise.
Anyone encountered this problem and know how to fix this?
Does the server have the RSA2 card? Log into it if so, or use the IBM tools from the operating system to see if you've got something going on with a component running hot. You should be able to get a read out of most major components and all the fans.
That being said, sometimes all you need to do is turn it off and on again.