Hi.... i just make new pc intel i3 3220/asus p8b75 m lx board/kingston-kvr1333d3n9/4g-sp ram/coolermaster-thunder500w supply/deepcool iceedge 400xt cpu cooler/3no.120mm cabinet fan,in antec one case,using window 7 ultimate 64 bit sp1 facing slow speed and hanging problem.... pl HELP & GUIDE