oh well, 90mhs are 40 5-year old westmere cores with about 2,6ghz clock.
easy if you have 3 proliant dl380 gen 7 for example. and a lot easier, if these servers are bigger or newer.
we have here a machine, that could achieve 90mhs without problems.
if u got some vps..u can use the vps cores for mining for example...botnets working also