New Optiplex 7040 mini-towers DOA

Hi Everyone,

We just started a new contract with Dell for corporate Optiplex 7040 mini-towers and I have 2 that arrived DOA. Techs replaced motherboard and we've tried every other conceivable plug in, don't plug in, to see if they will fire up. The irony is the second one just came in as the replacement for the first one which was RMA.

Are there any known issues with these models and defective internal parts out of the factory? I'm hesitant to order more at this point and I've made our distributor CDW aware of the issue.