at about 4:30 this morning my computer suddenly started making a loud buzzing/humming/grinding sound. loud enough that it woke me up. so i turned it off & went back to bed. when i got up i turned it back on & the sound returned.
i just replaced my heat sink a couple weeks ago... this is a totally different sound. maybe it'll be something trivial & we'll get it fixed today (or barry will, anyway). because the thing is too damn loud to actually use without being distracting.