how do I keep the 900 HP module from locking up?

I took down the post because it contained the solution.

Your radio should not lockup during normal use. Do you know what is happening when the radio locks up?

I have seen this problem most commonly with bad power supplies. With so few details how are you sure these problems are related?
Edit: My apologies I didn’t notice this was a self posted answer. you would know all about the testing.