Oh wow, not sure about the powering down. Mine will restart issuing output if it's restarted, fortunately.
I wiped my drivers, reinstalled, same issue. Might I also note that with the same drivers, using my onboard video (ATI Radeon HD 3200), I can wake it using any key.
I looked through the BIOS, but didn't find anything that seemed to fit. Not surprising, considering the manufacturer's BIOS. Wonder how much it would really cost them to have a decent BIOS on here.