ok, now i will tell u why u should avoid skimping on cpu and memory: earlier versions of ccminer tend to hog cpu resources. this prevent gpus from achieving peak hashrate.
recall that ccminer 0.4 and 0.5 heavycoin mining used to need multiple instances of ccminer, only 2 gpus per instance? in my case, with g3220 cpu and 8gb ram, i can only do 3 instances of 2gpus each with tolerable hashrate performance. if i launch the 7th gpu, in its own window, or along with the 3rd window (3gpus in it instead of 2gpus), the whole rig slows down to 70% of hashrate. running 1 instance with all 7 gpus had , of course, worse performance.
I get it with the cpu load, that's a problem (or rather used to be a problem, seems like it's much less of an issue now, at least for x11), but why do you need so much ram? My 750 ti rigs are now each equipped with 5 cards (mostly because I'm using ribbon non-powered risers and it's not easy to arrange more cards per rig with those short risers), and all running win 7 x64 with 4gb without any problems. I'm just curious whether you really need more ram for 2 extra cards, cause with 5 cards I've still got at least 2 gb free out of those total 4 gb..
