So i have an amd phenom II x4 925, 4gb of ddr2 corsair dominator and an Asus M4A785-M motherboard. i want to crossfire another 5830 but this motherboard only has one pci slot. Can someone please tell me a suitable motherboard that will use my ddr2 ram and my am3 processor while having two pci 2.0 x16 slots?
Unfortunately DDR2 crossfire AMD boards are going out of fashion pretty fast. Still, MSI has this pretty good board for a decent price
MSI 790XT-G45 69.99
You're limited to 8x/8x rather than 16x/16x though, but the performance difference for crossfireing two 5830s isn't huge. If you really want two 16x slots then you will have to get DDR3 memory, but I say wait till AM3+ boards roll out since AM3 and AM2+ boards will generally not be able to support Bulldozer. I say generally because I wouldn't be surprised to see ASUS and ASRock support a few bulldozer CPUs with a beta BIOS on a few of their boards.
thanks for the answers! I can't decide if i should just upgrade to ddr3 and a crossfire board or if i should still use my ddr2 and crossfire. i think i'll follow your advice megamanx00. ddr2 is going out of style and i could still probably fetch a pretty penny for my high end ddr2 ram and use that towards a new board and ddr3.