For the last few hours, my computer has been freezing at random every minute or so. I'll type some text, and it won't appear until ~15 seconds later, all in one block. It started happening all at once for no apparent reason. I didn't make any system changes (that I can think of). I'm using about 2% CPU and 10% RAM.
The only thing out of the ordinary is that yesterday, my fan started making a bad sounding noise, and it kind of switches between on (making a grinding sound) for 30 seconds, and off for 30 seconds. But my processor is still fairly cool (the fan used to blow cold air consistently, and I don't think the issues are related.
Crunchbang/Debian Linux, kernel 3.10-3-amd64