I believe this one has a relatively simple solution. The answer being no.

An omnipotent being, to be omnipotent, must be able to do only anything that is logically possible.

For example, I would not expect an omnipotent being to show me a circle with four sides because the nature of its existence precludes that it cannot exist.

The same is said for a rock so heavy an omnipotent being could not lift it. No such rock is logically possible because weight is irrelevant to an omnipotent being.

However, this does not show a restraint on the omnipotents power but a restraint on the nature of the universe.