How well do these handle a power outages? I get brief outages when there is bad weather. My BFL single handles these well being powered by an evga 500b PSU. I might have to restart the miner a few times afterwards to get the most chips running, but otherwise no harm is done. I plan to use a corsair tx650 for the S1 I ordered. Should I get a UPS for it?

Also wondering if the most recent orders will be coming with pcie extenders?