Big Ben's got you covered! There's no where near enough power in those magnets to do any harm, keep in mind that all your fans are probably emitting more powerful magnetic fields than simple fridge magnets, and if you look at disk erasers back when people used disks these were more common, but they're big electromagnets which could probably lift an empty steel case, that's the kind of power you're looking at to erase disks through plastic, but I still dont suggest actually sticking magnets on things like hardrives. Also keep in mind that the only devices magnetic fields mess with are magnetic storage drives which includes HD's FDD's but not optical stuff or chips!
GL Modding
