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Two graphics cards in one motherboard...

mrochester

mrochester

mrochester

Soldato
Joined
29 Sep 2003
Posts
5,834
Location
Newcastle upon Tyne
Right this is not a question about SLI or Crossfire. My motherboard, is by chance, SLI compliant, and has 2 full length PCI-E slots. But what I want to do is run one nVidia card, and one ATI card and be able to use either/or. Is such a thing possible?
 
My motherboard is also SLI compliant. I have an ATI Radeon 3870 in now. I could put my 8600GT in the second slot and see if it works, if that helps you?
 
That'd be great if you could try. I'm asking because I have an 8800GT, and one of my favourite games seems to be buggy when played on an nVidia graphics card, so I'd like an ATI one in the other slot to use when I play said game!
 
Thats an expensive fix, you could just be patient and wait for a driver update or game patch?

Also, you would have to swap which card the monitor was connected to depending on the game, unless you have multiple connections on your monitor, or dual monitors in which case you can play the game on the secondary monitor via the Nvidia card?
 
UKDTweak said:
Thats an expensive fix, you could just be patient and wait for a driver update or game patch?

Also, you would have to swap which card the monitor was connected to depending on the game, unless you have multiple connections on your monitor, or dual monitors in which case you can play the game on the secondary monitor via the Nvidia card?
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It's a fairly old game - The Movies - a few years old now. I'm getting a £25 ATI graphics card to try which'll be more than powerful enough to play it. Sadly, because of the age of the game, there will be no more patches for it. And I don't think nVidia are in a hurry to fix the issue either.

Yes my monitor has 2 inputs, so if both graphics cards can output exactly the same image, I can connect the ATI card to the analogue connection, and leave the 8800GT connected via DVI.
 
Monkeynut said:
You should be able to do that with one card, provided it has two outputs for screens.
Click to expand...

Nah, doesn't work, most 3d games need the primary display to run.

My primary monitor is a 15khz arcade monitor, with a standard PC monitor on the secondary for PC gaming.

Arcade monitor has to be on primary, would a second card for the PC monitor solve my problem?
 
1X8800GT and 1X7300GS

gazza1970 said:
good question really i loved playing RALLYMASTERS on nvidia gfx but ati doesnt support it so would love to know out come

might save me getting rid of my hd2900xtx then and just get nvidia for second slot :)

MY ORIGINAL POST
Click to expand...

I put a second card in mine tonight for a third monitor and it works fine. All I had to do was download the drivers for it. 1X8800GT and 1X7300GS. I could watch a movie and play a game at the same time.
 
Its easy enought to switch the primary display. Its just a tick box Display Settings. I'm sure google might even have some script to do it even more quickly. This could be added as a switch in the shortcut for your game.
 
fuzecx said:
I put a second card in mine tonight for a third monitor and it works fine. All I had to do was download the drivers for it. 1X8800GT and 1X7300GS. I could watch a movie and play a game at the same time.
Click to expand...

Any reason why you couldnt do that on 2 monitors with just the 8800GT?
 
creed said:
Any reason why you couldnt do that on 2 monitors with just the 8800GT?
Click to expand...
When ever I started a game while playing the video the sound stayed but the video went blank. The resolution was the same on both monitors and never changed when I started the game. I'm not an expert but maybe I couldn't play both with just the 8800 because the video and the game use 2 different renderers as in DirectX and OpenGL? Whereas with 2 cards I could use 2 diffrent renderers.
 
Confused!

After checking device manager the drivers for both my graphics cards appear to be the same. I don't get this as a new card was detected when I installed it and I went through the process of downloading and installing the proper drivers for it to work. I guess this kinda proves what Big.Wayne said - I don't think you can have nVidia drivers and ATI drivers working on the same system?.
2gfxcards.jpg

P.S. Should I be worried? I don't want my board burning out on me.:eek: Its been fine for the last 12 hours at least.
 
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