Hello, I've followed this forum forever but it's my first post. I've got a couple Antminer S2s and one refuses to hash. I've swapped parts and narrowed it down to a faulty IO board, I tried to purchase a replacement board from eBay but the seller said it was out of stock.?.? Does anyone have an IO board they'd like to sell? I don't even need the Beagleboard but wouldn't mind an extra. Thanks!