Runaway cooling fan
I have a Gareway with an Intel core 2 quad processor and have a problem with the system crashing. Sometimes it will run fine for days, other times it will crash every 20 minutes. Leading up to the crash is always the same, the processor cooling fan begins to speed up, then gets very fast before the crash. The fan will continue to operate at the high speed even after the system crash, until the computer is manually shut off. Operating system is MS Vista.