See http://www.motherboards.org/reviews/motherboards/1474_2.html and you get the instant indication that you use PAIRS to maintain the dual channel ram setup or suffer a big speed hit.
I think I need more ram on my Pc. When I play to Battlefield 2 (all resolution and everything max) My ram is 100% used. My computer is:
Intel 3.2Ghz on Asus P5GDC Mother board
1Go kingston DDR2 533Mhz
Maxtor 80Gb s-ata 7200rpm 8Mg
running on Windows Media center...
I want to add a OCZ 1Gb DDR2 800Mhz is it bad or we don't care to mix to kind of ram??