I doubt it, speedfan gives completely wacko readings for devices that do not exist. Your monitoring chip on the motherboard supports 3 thermal sensors and one of that chips sensor inputs is not hooked up to anything and speedfan goes insane trying to read it. Go into speedfans options/advanced settings I cant remember exactly where and uncheck "Temp 3" to get rid of the nonsense reading. My board does the same thing.
If something was actually that hot you would start smelling it as the motherboard started to scorch.