hello there,

this may be a silly question. I have a rig with Ubuntu and two spare discrete gpu cards (AMD HD 5450 pcie and Nvidia gt 430 PLAIN-PCI)

Now here's the thing I wanna get them all to work together so I can not have to feel guilty for having a spare gpu lying around thats not doing SCIENCE.

oddly enough, I have been able to install ubuntu with both cards plugged in... but only wile using the X.org drivers. As soon as I install one or both flavors of drivers then it gets a bit unstable and does that "low graphics mode"-thingy. (as you can tell, I am new to linux)

is there any way I could disable one of the cards and use it only for crunching things (preferably the AMD card)? - I know this sounds ridiculous, but hey, SCIENCE

Also, I realize this may not be completely relevant to boinc since its more hardware/ubuntu based question. if there is another forum I could go to that anyone knows of to get better advice on this then I'd love to know.

Thanks

Additional information,

Mobo: NodusM3 (it's an old one, it isn't worth anything so im just using it like a spare local server/HDTV sorta thing)
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00757531&cc=us&dlc=en&lc=en

3gb ram Ubuntu 13 for 32 bit i believe

Card 1, (mentioned in a previous thread) xfx 2gb HD 5450 ddr3 pcie

Card 2, regular old PCI, zotac, gt 430 fermi, 96 cuda cores.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814500221

If I'm deciphering the search results right, it's not going to be easy. You might have better luck at Ubuntu Forums or AskUbuntu.