I'm running SuSE 103. on a HP nc4000, and everything runs perfectly, except that every now and again, the computer freezez for about 1-3 seconds. Everything halts. Mouse, video/audio playback, software...
At the same time as the freezing, I notice that the CPU fan kicks in at high speed. (the rest of the time the CPU fan is either off or running at a low level).

I don't know if this is an ACPI issue, or something else, but was going to try and disable ACPI on boot, and see if that does anything, but I have no idea how.
Can anyone tell me how to disable ACPI?

Or is you have other ideas as to what I could try, please let me know.