Not long ago I built my rig w/ an Asus P5Q3 mobo, intel core 2 quad Q9550 2.8 Yorkfeild, 2 1 gig each ddr3 memory sticks corssair 1333, an HD 4870 512 graphics card, an Antec earthwatts 650 power supply. and 3 western digital hard drives in raid o. using vista home premium. Question is the memory good/bad , right wrong?any ideas for upgrading? Thanx for any info.