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jkheit

Guest
Original poster
Aug 27, 2010
44
0
Hi All:

I'm working on a project where I want to get at least 9 30" (maybe 27") displays working on a new Mac Pro. Does anyone have any suggestions on how to get a Mac Pro to use that many displays?

I think the most you can do from Apple is 6 via two ATI 5770 or 5780 display cards (3 displayports per card).

To make this work though, I think I would need to use either the ATI 5770 Eyefinity (supports 5 displays) or the ATI 5870 Eyefinity (supports 6 displays). Unfortunately there is no Apple blessed version of this card.

However, I'm aware that there has been some success flashing non-apple blessed ATI 5X70 cards (at least that are close to the reference design). In following the threads in the forums, I've seen success with cards supporting 3 displayports like the apple/reference design.

Has anyone tried/succeeded in flashing the Eyefinity versions of the card like this single slot version and do all (5 of) the displayports work?

http://xfxforce.com/en-us/products/graphiccards/hd 5000series/5771.asp

Thanks for any ideas/help!
 

alphaod

macrumors Core
Feb 9, 2008
22,183
1,245
NYC
If you don't mind using Windows, then just build a PC with 2x 5870/5970 Eyefinity 6 GPUs and you can get up to 12 monitors.
 

jkheit

Guest
Original poster
Aug 27, 2010
44
0
If you don't mind using Windows, then just build a PC with 2x 5870/5970 Eyefinity 6 GPUs and you can get up to 12 monitors.

Not a big windows user. I would love to get 2 5870 eyefinity cards. I wish someone would try to flash them and try them on OSX.

Not sure this would work, the new macpro only has 3 slots. It will fit 2 double wide cards, so you can't just put in 3 5770s. You could put in 2 apple cards, and the try flashing a 3rd parry single slot version of a 5770 that is close to the reference design. That might work.

I guess that leaves 2 questions: 1) does anyone know of a single wide version of either the 5770 or 5870 (that supports 3 30" displays--most seem to have one hdmi port, which I think mazes out only at 1080p), and 2) would having 3 cards make the Mac pro howl (my 2006 Mac pro would be fine with 2 video cards, but the third would make the system sound like a jet engine)?

Thanks.
 

Transporteur

macrumors 68030
Nov 30, 2008
2,729
3
UK
Not sure this would work, the new macpro only has 3 slots.

What makes you think that?

It has 4 slots and the easiest solution has already been presented by Umbongo.

Three GT120s (single slot) in the three upper slots. plus a single 5770 or 5870 in the first slot.
Gives you 9 ports that each support up to 2560x1600.


Reference 5770s in a single slot design are for example made by Sapphire.
Just check out the threads for flashing PC cards if you wanna go that route.
 

jkheit

Guest
Original poster
Aug 27, 2010
44
0
What makes you think that?

It has 4 slots and the easiest solution has already been presented by Umbongo.

Three GT120s (single slot) in the three upper slots. plus a single 5770 or 5870 in the first slot.
Gives you 9 ports that each support up to 2560x1600.


Reference 5770s in a single slot design are for example made by Sapphire.
Just check out the threads for flashing PC cards if you wanna go that route.

I have two apple 5770s and only see 1 free slot. Maybe one of the cards blocks a slot? I'll check.

I don't see any single slot sapphire cards:
http://www.sapphiretech.com/presentation/product/?cid=1&leg=&psn=000101&gid=3&sgid=643


If there is a single slot sapphire reference-based card that supports 3 30" displays, that would be great. Thanks.
 

Hellhammer

Moderator emeritus
Dec 10, 2008
22,164
582
Finland
I have two apple 5770s and only see 1 free slot. Maybe one of the cards blocks a slot? I'll check.

The slot #1 doublewide so if you take out the 2nd 5770, you should have three empty slots which can be populated with GT 120s as they are single-slot cards.
 

gjarold

macrumors regular
Nov 14, 2007
123
0
I'm resurrecting a dead thread here because I am now faced with the same issue.

To wit: I need to connect EIGHT 2560x1600 displays to a single 2009 mac pro.

One easy way to do this is with 4 gt120s. Ok, no problem.

However, I am ALSO interested in a pcie based SSD card, and am wondering if there is any way possible to do that ... basically, drive 8 displays with only three pcie slots ? (since the fourth will be used for the SSD).

It doesn't look like this is possible ... the 3x display cards apple sells (HD 5770 and 5870) are both dual height, so wouldn't that eat all four slots ? If I get one of these 3x display cards and put it in the top slot, and put gt120s in the next two slots, that only gets me to 7 displays.

So correct me if I'm wrong, but it seems there is no way to get 8 displays in 3 pcie slots ?

Thanks.

EDIT: SORRY - original post I said 4 displays, I meant 8 - I need to connect 8 displays, and am wondering if I can do it with three cards...
 
Last edited:

goMac

Contributor
Apr 15, 2004
7,662
1,694
Two 5770s and two GT 120s will get you 10 displays.


I'm resurrecting a dead thread here because I am now faced with the same issue.

To wit: I need to connect four 2560x1600 displays to a single 2009 mac pro.

One easy way to do this is with 4 gt120s. Ok, no problem.

Or two 5770s?
 

mulo

macrumors 68020
Aug 22, 2010
2,267
5
Behind you
you guys do know each displayport supports four displays on its own right? - daisychain it.

Wikipedia said:
DisplayPort version 1.2 was approved on December 22, 2009. Most significant improvement of the new version is the doubling of the effective bandwidth up to 17.28 Gbit/s, which allows for increased resolutions, higher refresh rates, and greater color depth. Other improvements include multiple independent video streams (daisy-chain connection with multiple monitors)
http://en.wikipedia.org/wiki/DisplayPort
 

Transporteur

macrumors 68030
Nov 30, 2008
2,729
3
UK
you guys do know each displayport supports four displays on its own right? - daisychain it.

And you know that there is no adapter for daisy chaining, right?
I haven't heard of a single card that supports this feature yet. Even Matrox cards don't support it (and I suspect them to be the first ones to implement such a feature).

Anyhow,
2 5770s give you 6 display outputs and leave the upper most PCIe slot for the SSD. That way you won't cut the PCIe performance of the two upper slots (they share 8 lanes). And 8 lanes is more than enough for a SSD.
 

Vylen

macrumors 65816
Jun 3, 2010
1,026
0
Sydney, Australia
Aside from needing a card that supports DP 1.2, you also need monitors that support daisy-chaining as well. Don't know if those exist either.
 

Hellhammer

Moderator emeritus
Dec 10, 2008
22,164
582
Finland
I haven't heard of a single card that supports this feature yet. Even Matrox cards don't support it (and I suspect them to be the first ones to implement such a feature).

AMD 6000-series supports DisplayPort 1.2 and daisy-chaining

X-2010102208091343665.jpg


http://www.anandtech.com/show/3987/...renewing-competition-in-the-midrange-market/3

Unfortunately MST hubs or displays with daisy-chaining don't seem to exist, yet.
 

gjarold

macrumors regular
Nov 14, 2007
123
0
Ughh... I misspoke in my original thread-resurrection-post.

I need to connect EIGHT displays, not four, and I am wondering if there is a way to connect 8 x 2560x1600 with only three total video cards ?

I know I can do it with four if I use 4 gt120s ... that gets me 8 displays.

I am just wondering if there is any possible way to get to 8 displays, but only use 3 pcie slots... since I already have one single slot device in the system. I don't think I can use 2 5770s and a gt120, since each 5770 takes up two slot spaces...

Thanks.
 
Last edited:

Mackilroy

macrumors 68040
Jun 29, 2006
3,924
604
If you don't mind using that USB adapter mentioned earlier you can do it, but otherwise I can't think of any combination of cards that will supply enough ports for your needs.
 

Bwa

macrumors 6502
Jun 20, 2007
301
18
Boston & San Jose
9 displays == 1x 5770 (3) + 3x GT120 (6) or 2600s.

You could also look into an PCIe expansion chassis. These run around $2000 - $5000 depending on what you're buying.

http://www.magma.com/

bhphotovideo stocks a few by other manufacturers as well, I believe.
 
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