For example I've seen this happen with a network share that was offline. Try this. Right click on the network neighborhood and remove all printer and network shares.
My system hangs, there is a clang sound on the speakers, then in about 10-15 seconds another clang sound and it starts running again. When the system hangs, I hit the cntl-alt del keys to see what is running; nothing strange shows up. This cycle happens every 5 - 10 minutes. Would appreciate any help possible.
Thanks in advance,