I suppose the only way to know is to find out. And if you find out, it will be interesting whether or not the warranty is honored. A 210 watt power draw increase doesn't safe to me, but who knows; maybe your PCB won't burn or your VRM won't pop.
You are also significantly exceeding the power rating of your 6-pin and 8-pin connectors. Again, "safe?"; I don't think it is safe to purposely exceed design limits. It's not designed or tested to run that way, so I wouldn't count on problem-free operation.
Someone correct me if I am wrong, but doesn't it sound like he using the Kingpin XOC BIOS which voids the Kingpin card's warranty? And if so, wouldn't it stand to reason that it also voids his video card's warranty?