Yes, but aren't S5's known to sometimes overheat when the internet goes down and there's no hashing going on? I personally added a rear fan and wired it to a full 12v so it's always running full out even if the internet goes down and the controller board signals slow or no fan speed.
I have a pair of S5's that do indeed heat up when the internet goes down. Others don't have that problem. I would suggest S5 users, kill their modem to force a test on their S5's to see how their's react with no internet. My fans slow way down, but the heat goes way up. YMMV
There are pages and pages in this thread that talk about the same runaways temps when the Internet drops out or a problem with the pool. Users have posted screen shots and everything. Nothing was really done about it. This is nothing new.