solo mining on antminer only uses 1 blade

[boliu]

hi i was wondering if anyone has tried solo on the antminer 180

i know the chance are next to 0   but just wanted to tried to satisfy my curiosity.   when i connect to my server with the antminer 180ghs   i only get 90ghs and only one blade runs   the status on the second blade is all x's

it works fine when i join a pool

does anyone knows if this problem on the antminer or at the server

server running win7 latest wallet

thanks