I'd like to chime in and say that it's 'possible' to make a little linX, can't tell you how much, with a normal cpu.  The m7m (Magi coin - XMG) algo is cpu only, and has the highest profitability on zpool.  If, for example, you use zpool.ca and mine to the m7m pool, you could give you linX address and specify c=linx.  So, you mine the m7m coin and get paid in linX.  It might only be a trickle, but worth a try.  Do a search for the m7m algo in Bitcointalk and you'll find the info on it as well as pools and miners.  I only have a little experience with m7m and have tinkered with it a few times.