This is a question I couldnt find an answer for. Hopefully someone can help me out.
Will a Vantec Tornado 80mm fan effect my Hard Drive? The fan in the intake fan, so its right under the hard drive. Do fans create magnetic fields or anything? I did hear magnets mess up the Hard Drive.
It's not as crazy as it sounds. DC motors do have magnets in the them but they are fairly weak although maybe long term exposure could have an effect. If you put a metal screwdriver between the blades it should have a slight attraction to the hub. I imagine Seagate etc. could tell you the field strength that would cause problems and then you could ask the fan manufacturer what the strength of the magnet is. B*llocks to that though. Just buy a new drive in 3-4 years time.
Seriously though the magnet runs around the base of the fan blades inside the hub. So I guess a magnet would stick but it might mess up the fan action and would cause noise/bearing wear if it was off center.