6 x 1024x768 with triple head and quaddro fx?

[emilianomorgia]

I personally tested the follow :

One Mac pro 2.66 with 2 giga ram and a ATI RADEON XT 1900 4 sata drive amounted on the internal bays
One TRIPLE head 2 GO DIGITAL EDITION ( very important not the analog edition )
Catalyst m147

I was able to output 4 x 1280x1024 @ 60 HZ ( 4 = 3 on TH2G - 1 on second DVI output )

[emilianomorgia]

Also ...

I've personally tested the follow :

Mac 2,66 2 giga ram with ATI RADEON Xt 1900 using TWO triple Head2Go Analog edition allow me to output the follow

6x800x600 @60hz

This is what I had from my system ....

Once an old rich man told me :
One don't know if one don't test

[samsc]

I personally tested the follow :

One Mac pro 2.66 with 2 giga ram and a ATI RADEON XT 1900 4 sata drive amounted on the internal bays
One TRIPLE head 2 GO DIGITAL EDITION ( very important not the analog edition )
Catalyst m147

I was able to output 4 x 1280x1024 @ 60 HZ ( 4 = 3 on TH2G - 1 on second DVI output )

'digital edition' only worked at 60hz last time i checked.

you need to be super careful mixing screen sizes with different sizes on different outputs - because it does not always work and can kill performance.

[emilianomorgia]

'digital edition' only worked at 60hz last time i checked.

confirmed

[AndreK]

Thanks for the comments!
My customer decided to buy a ATI X1900 has saw no big advantage in buying the Nvidea4500 which is much more expensive.

He also decided to buy 2 x TH2G digital edition.
It is nice that you can swap the triple head functionality to dual head.
The newest version can output 75Hz in 3072x768 mode.

Andre

[samsc]

Thanks for the comments!
My customer decided to buy a ATI X1900 has saw no big advantage in buying the Nvidea4500 which is much more expensive.

He also decided to buy 2 x TH2G digital edition.
It is nice that you can swap the triple head functionality to dual head.
The newest version can output 75Hz in 3072x768 mode.

Andre

mac news sites that compared raw graphics performance saw no advantage to the 4500 over x1900. i have not tested them.
there is a big difference between the 7300 and the x1900- the x1900 is much better. ( i just upgraded a theatre show from a 7300 to an x1900 - with a vast improvement )

just because it says the newest triple head will do 75hz at 3072x768- does not mean it will work. you will have to test it for yourself.
and i would not ever recommend that anyone does this on pre-intel machines - they are just not powerful enough.

there is also the vqs-01 which i have been told has been used successfully on shows in london
http://www.datapath.co.uk/vqs01.htm

this has 4 outputs.

[OlliR]

Now I see why we have 8 mixes at hand...

The vqs-01 seems to works fine. We used it one a TV show a few weeks ago - not directly connected to the Catalyst but the signal going via SDI to the OB unit and back via SDI to the vqs-01 and the four projectors (they wanted to have live camera feed on the projection as well - so the Catalyst output was keyed in from the OB)

At that time I thought the vqs-01 was a good alternative to the TH2G - though it might be a bit more expensive.
Having a look at the available input resolution I am really missing the 4 x 1024x768 at 50Hz - that would be the one to have as XGA is still the standard resolution of most projectors - it might work with 25Hz when genlocked though.

When I get my hands on the vqs-01 next time I will try to do some testings...

[samsc]

Now I see why we have 8 mixes at hand...

The vqs-01 seems to works fine. .

yes it might be possible to use 2 of them- there isnt anything in the software to prevent this - it will depend on the graphics card.

i havent tested them myself yet.