My cpu fan was making alot of noise, so I open my computer- and not surprisingly the thing is coated with dust, so I take it apart, clean it out- mostly using cotton swabs- and I put it back on, the rpms are higher and the cpu temperature dropped by about 10 degrees.
Good, I thought- however now my rpm's fluctuate- it runs around 3800 for some time, but it suddenly would drop to like 2000 rpm- and then my cpu temperature would start rising so fast that I'd shut off my computer before it harmed anything.
I lift up the fan from the heatsink, and the underside of the fan is very hot- I try to readjust it on the heatsink, and leave it loosened instead of screwing it down. So right now my cpu appears to be fine, I started out with 3800 rpm- but now my rpm is at 3300 and I'm waiting to see how long it goes before crapping out.
Is it normal for fan speeds fluctuate by that much? It seems like I need to replace the fan altogether, or worse- the fan and the heatsink- unfortunately I can only get one out of a spare computer, and I'd be computerless for a week if I ordered a new part.
!! The fan is now at 2300 rpm. I really gotta stop pushing this hoping that it'll start working normal again. I suppose it's better to wait and replace the fan than to burn my cpu.
lol, someone donate me a water cooled mobo- being a poor college student sucks.