Why cpu fan appears on my screen

[susheel_55]

i had an i3 processor with 4gb ram n windows 7 os, my system runs good at all times. but,recently i have been facing a problem,i could see the cpu fan running on my screen,the spokes and revolutions of those spokes at varying speeds could be seen on screen clearly? hw to rectify my problem

 

[Raiddinn]

Your processor fan rotates at 1300+ RPMs and a lot of the time 2000+ RPMs most likely. That would mean more than 20 full spins per second, or 5% of 1 second per spin. That is on the slow side.

It would look like a blur if you could see it.

Not to mention the video card knows absolutely nothing about the status or operations of the processor fan.

I don't know what you are seeing, but it doesn't sound like it is related to the processor fan.