sorry guys im new to this. is there some guide that you can point me to for my problem. i just bought a 5830 for cheap but i have a 4850. i would like to use both for mining. my 5830 gets about 300 mhash/s @935/500mem(cant go lower in msi afterburner) the 4850 is getting about 100 mhash/s if that. i want to mine with both to get around 400mhash/s until my other 5830s come in.

here is where im stuck. i have plug both cards in. the 5830 is plugged into a dvi>vga>monitor. the 4850 is plugged into a HDMI>tv/monitor. i did that because i read it has to be plugged in or use a dummy plug. i dont have any yet. now i had my settings set for the 5830 i.e. OC'd/fan speeds. now i cant use them. its as if the 4850 is there. i can still mine on the 5830 about 275mhash/s but on the 4850 its like 5mhash/s lol.

what do i do to fix this? thanks for the help in advance! also can i run 4x5830s on a corsair 750tx psu? im using a 710w kingwin cheapo right now until the other cards come in then ill switch psu from my gaming rig.