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HD 7970 in my mac pro

I

Irvingoh999

macrumors newbie
Original poster
Dec 17, 2016
18
2
Currently,im using the stock HD 5770 which can only support up to 2560x1440 but i want to be able to get at least 4k on it.Also,ideally i would want to be able to output 6 monitors at 1080p.

The MSI R7970 LIGHTNING would be an excellent choice to get 6 monitors running and be able to run a monitor at 4k so i hope to use this card.

https://www.msi.com/Graphics-card/R7970_Lightning.html#hero-overview>>>Link to the card i plan on using.

Has anyone had any success with this exact card?or a card that is similar with 4 mini displayports?

Also i plan on flashing the R7970 but am not very sure on the procedure.Is there a step by step instruction page that will walkthrough on how to flash the card?
 
The generic one (from "7xxx testing thread" @ netkas.org) will definitely disable most ports on that card. Your best bet is the thread I've linked.
 
Irvingoh999 said:
Is there a generic efi rom that has a chance at getting my specific HD 7970 to work?
Click to expand...

As Fl0r!an said – nope. You'll lose one DVI and 2 mDPs.
Easiest way to try 6 displays from this card is to run it unflashed.
Framebuffer set in the "generic" EFI isn't able to output more than 4.
 
666sheep said:
As Fl0r!an said – nope. You'll lose one DVI and 2 mDPs.
Easiest way to try 6 displays from this card is to run it unflashed.
Framebuffer set in the "generic" EFI isn't able to output more than 4.
Click to expand...

So its impossible to have flash the HD 7970 and still have 6 display outputs?
 
Fl0r!an said:
Why don't you just look into the mentioned thread? The information on a similar HD 7970 Eyefinity model should be around page 5 or 6.
Click to expand...
I shall look through it a few times.So far i cant understand whats happening at all in that thread.Hahaha im a real noob and its gonna take awhile to learn what is happening in the mapping thread.Could you simplify it so that even an average joe could understand whats happening?
 
Irvingoh999 said:
I shall look through it a few times.So far i cant understand whats happening at all in that thread.Hahaha im a real noob and its gonna take awhile to learn what is happening in the mapping thread.Could you simplify it so that even an average joe could understand whats happening?
Click to expand...

Sorry, there is no short cut, you have to study it, understand what's happening, and do your own work (still require try by error) to make it work. otherwise, keep it simple, accept what you have now.
 
Start reading at this post: http://forum.netkas.org/index.php/topic,10827.msg31178.html#msg31178

What you need to do now:
  1. Understand how to attach the EFI in that thread (RFB.efi) to your ROM (cross-flashing a mismatched ROM will most likely produce a brick).
  2. Flash it to your GPU
  3. Find out if any ports provide a boot screen. Legacy connections (DVI or passive adapters on DP) are most likely to work.
Sadly can't make it easier than that without coming to your house and doing it myself.
 
sadly i cant really understand it yet but will continue to read about it. Should i just get a reference 7970 and flash that one?will all the 5 outputs be able to output video at once?that way i will be able to get at least 4 screens?
 
The reference HD 7970 has 4 outputs and all of them should work at the same time. Some cards will loose HDMI functionality after flashing though, limiting you to 3 screens.

Btw, the guy in the thread claimed to have all 6 outputs working and also boot screens, but I'm not sure about the connection type he used.

Another option might be getting a pair of HD 7870's, should be possible to run them on internal power. They can power up to 4 displays each. Only drawback: Bootscreens are only possible on DVI.
 
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