I have 2 GTX 465, (I just got the second one right now) and I plan to use both to speed up my renders with octane (mostly using the 3ds max plugin)
Now, I would like to know if I can have a third (and cheap) graphics card just to be able to multitask (simple stuff like opening folders, checking other files or browsing the web)
I ask because I'm just not sure if this would be compatible... In this case I would have 2 gtx465 for octane render, and a cheaper graphics card, lets say, a geforce Mx 400 (that was a bit random, I still need to check if that's compatible with my motherboard

But that's the idea, I just want to make sure this would work
(my motehrboard is a gigabyte x58a-ud3r if that makes any difference)
Thanks!