2 Graficcards

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E-Tech Austria
Posts: 5
Joined: Mon Apr 20, 2009 10:08

2 Graficcards

Post by E-Tech Austria »

Hy!

What is the differenz on this picture between:

Renderer and GFX Card?

Because the Renderer in this case is the less performance Card!

How can i change this?

BR Daniel

System:
2 x Hexacore X5650
48GB RAM
2 x Graphiccard NVidia
Windows 7 PRO
SSD
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Joris
Posts: 5186
Joined: Fri May 22, 2009 11:38

Re: 2 Graficcards

Post by Joris »

Renderer is the card that is being used for rendering.
Gfx Card is the card that this output is physically connected to.

Resolume does all the rendering on the card that has the UI on it. So make this your best card. If you have to use more than one card, connect your display outputs to the lesser card:

From http://resolume.com/support
Which graphic card will Resolume use for rendering?
Resolume always renders on the card that has the interface on it. So always make sure this is your most powerful card.

Some people think that because the main output is connected to a certain card, and the main output shows the final result, that's also where the final result is rendered. This is the opposite of what happens!

The moment you have an output on a different card than the one the UI is on, the computer needs to copy the entire end result, and then cut it up and output it. This step is always an extra performance hit, and if you want to squeeze the most performance out of a machine, it should be avoided as much as you can.

E-Tech Austria
Posts: 5
Joined: Mon Apr 20, 2009 10:08

Re: 2 Graficcards

Post by E-Tech Austria »

This is a little bit confuseing, becaue the UI is on the faster Card (NVIdia Gefroce GTX750TI) ans also one Output and the second Output is on the Quadro! How can i chahge this? is there an option?

Joris
Posts: 5186
Joined: Fri May 22, 2009 11:38

Re: 2 Graficcards

Post by Joris »

That is indeed strange. What happens if you switch the connections?

Ie plug the second output into the Titan and the UI and first output in the Quadro.

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Oaktown
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Re: 2 Graficcards

Post by Oaktown »

It may have to do with the way your PCIe lane are handled by your motherboard's controller. Are you sure the two PCIe lanes you have your GPUs on are both X16? It's possible you have your cards on a NVIdia Gefroce GTX750TI installed on a X8 PCIe lane and your Quadro card on X16 PCIe lane making it the faster card for rendering.

E-Tech Austria
Posts: 5
Joined: Mon Apr 20, 2009 10:08

Re: 2 Graficcards

Post by E-Tech Austria »

Acc. Spec both cards are installed at a PCIe2 16x slot, and the Z600 has 2 of them! Also both cards need PCIe x16 Slots and the 750TI also PCI-Power seperate :)

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Oaktown
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Re: 2 Graficcards

Post by Oaktown »

E-Tech Austria wrote:Acc. Spec both cards are installed at a PCIe2 16x slot, and the Z600 has 2 of them! Also both cards need PCIe x16 Slots and the 750TI also PCI-Power seperate :)
Installing a card on X16 slot doesn't mean it runs at X16. The X16 only means that the card can be snapped in the slot not that it runs at X16.

All motherboards have a controller that'll adjust the speed of the PCIe slots based on slot priority. It's very common to have a X16 run at X8 or X4.

What's your motherboard and what slots are your GPUs installed in?

E-Tech Austria
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Joined: Mon Apr 20, 2009 10:08

Re: 2 Graficcards

Post by E-Tech Austria »

Acc. this Spec:
http://h20564.www2.hp.com/hpsc/doc/publ ... -c01719695
GTX750Ti is on Slot 2
FX1800 is on Slot 4

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Oaktown
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Re: 2 Graficcards

Post by Oaktown »

It looks like the Z600 lanes 2 & 4 both support electrical and mechanical X16 but there is a note that reads:
If a graphics card greater than 75 watts is used, HP recommends that you leave the adjacent slot empty, and follow any additional workstation configuration restrictions. You can also use a lower power or lower profile card between slots for optimum cooling.
So are you using slot 3 & 5?

Also, it looks like you can set PCIe lane allocation between Slot four and Slot five using the Computer Setup (F10) functionality so make sure the settings are correct in there.

Have you tried physically swapping the GPU?

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