Thank you for taking the time to reply to my post. I tried using RivaTuner to adjust Fan speed, but to no avail. I will try MSI Afterburner.
The connector is properly connected. Also, I can rotate the fan freely with my finger (it's not obstructed in any way). It rotates about 10 degrees, stops, and after about 5-6 seconds does the same. On a related note, for some reason the 'Nvidia Control Panel' has stopped working. When I launch it, it just crashes. I remember using it some time back.
I will have to check to see what kind of fan you would need
My Motherboard: Intel 946GZIS