My mobo is Asus P5K Premium and it has 4 ram slots, 2 yellow and 2 black, in them i have 2 Crucial sticks or 1 gig each in yellow slots, those are sort of primary slots for dual ddr. My question is, if i want to bump my ram up to 4gig, can i just add 2 more sticks of 1 gig each into those black slots, or will it screw up my "dual" thing? My guess is that idealy would be to replace those 2 1gig modules with 2 2gig modules, but now that i have those 2 already can i just add 2 more?
See PIC:
See PIC: