About overheat with no moving parts, the hot temp is not due to motors or anything, but to regulators converting voltages inside.
It would be a good idea to get to the hot part and feel how hot it gets. If you can keep your finger on it the part will usually be fine.
If you can't keep your finger then the part will need some heatsinking, which may be provided or not. If it's not then some DIYing may improve on that.
In any case, such a mod should be carried on by someone who knows what he's doing, so as not to cause any short circuits or invalidate the warranty.