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Multi GPU support

Posted: Wed Jul 27, 2011 1:46 pm
by produktionshuset
Im about to shell out a ton of cash on a macPro (when the rehash happens) - sofar i've been using triplehead2go on mbp's with decent results - as the desktop gpus are far more powerfull than the mobile ones in laptops/imacs.
I was hoping that it is - or will be possible to:

a.) use 2 raphics cards in a mac pro ( judging from current setup that would result in 1 output for the desktop - 5out of 6 for madmapper.

b.) - this is where it gets tricky: 1 output for a lcdscreen, - 5 outputs for a combination of displayport/dvi triplehead2 go's for a combined madmapper "workspace" of 15 projektor outputs). (insert evil grin here).

Hows that sounding Boris & Co? :-)

outputs

Posted: Mon Aug 15, 2011 11:13 am
by bluecrash
only one 5870 will fit in mac pro tower

and you can only use one of its dp outputs at a time

I had the same idea to use 2 triplehead to go ... but only one dp and one dvi out work from the large card....

sad

Re: outputs

Posted: Wed Aug 17, 2011 9:08 am
by sigmasix
I managed to have it to work with all 3 outputs and 2 cards (meaning 2 DVI and 4 MDP) but only if everything is wired in VGA… I did it once and it worked fine and I had to do it again and everything was connected in DVI/optical and I could only have 2 outputs on 3 for each card (2 MDP or 1DVI and 1MDP…)

This is very problematic and not said in the tech spec of these cards…

only one 5870 will fit in mac pro tower

and you can only use one of its dp outputs at a time

I had the same idea to use 2 triplehead to go ... but only one dp and one dvi out work from the large card....

sad

Re: outputs

Posted: Fri Aug 19, 2011 4:43 pm
by produktionshuset
I managed to have it to work with all 3 outputs and 2 cards (meaning 2 DVI and 4 MDP) but only if everything is wired in VGA… I did it once and it worked fine and I had to do it again and everything was connected in DVI/optical and I could only have 2 outputs on 3 for each card (2 MDP or 1DVI and 1MDP…)

This is very problematic and not said in the tech spec of these cards…

only one 5870 will fit in mac pro tower

and you can only use one of its dp outputs at a time

I had the same idea to use 2 triplehead to go ... but only one dp and one dvi out work from the large card....

sad
What setup of triplehead's2go did you use? - i got the digital (dvi) atm, but it seems like you'd need to get the DP version for the best setting - also in terms of using all 3 outputs