Maximus X A2 code with black screen NO post

[Nad99]

Woved system to other room and started gettin code 99 with no post. Asus RMAed board and sent a new board and that one gave A2 code so they RMAed again and the third time same A2 code with no post. I have been using asus products for about 20 yrs and used about 30 board and other productsand this is the first time had a bad MB and asus support seems to be giving the run around.I hope they resolve issue for REAL and not just waste other peoples time . I have gone through their extensine trouble shooting with support multiple times. Month has gone by