The rear fan of my computer suddenly speeds up and is louder, but then quickly slows down, and then repeats. Reading the fan speed gave me around 1100 RPM, and up to 2200 RPM during the speeding up.
The case is CM Storm Enforcer, and the rear fan is the fan that was included in the case.
Can somebody tell me how to prevent this from happening?
If the Fan is connected to a Fan connector on the motherboard, its most likely the motherboard spinning it up and down due to some thermal setting in the bios.