Any suggestions on what to CPU-mine with it?
Run benchmarks of all cpuminers you can find and post here.
I have a script that automates that -- https://gist.github.com/hmage/923b95fad6955e1bf58ebb93d1b1071b
Run it like this: ./minerbench cpuminer-opt cpuminer-tpruvot cpuminer-nicehash
You can install cpuminers using norm -- https://github.com/hmage/norm
Install like this: ./norm install cpuminer-opt cpuminer-tpruvot cpuminer-nicehash
It will install all neccessary dependencies too, all you need is a working compiler.
After you run the benchmark, post results here so I can plug that into here -- https://hmage.net/minerstats.php#cpu_i7_4770_oc
Or host your own copy of that page -- https://github.com/hmage/minerstats
If only the server would be running *NIX... I will check if we can run your script from a Live-USB-Image... If it works, I gladly post the results.