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chris-snd

macrumors member
Original poster
Feb 26, 2021
42
6
europe
Hi,

Owning a mac pro 3.1, 8 core 2.8 ghz,

My gtx 680 died today, getting al stripes (artifacts) on screen. To be shure i tested it in another mac pro 3.1 with almost same specs. Well the results where the same. I googled a lot and it seems, or i guess it has bad Vram.
It all happened when today the displayport cable arrived so i could hook up my new dell 2560p monitor and use it at 100hz instead of 60hz on HDMI. I guess driving 2560p at 100hz was the last kick the gtx 680 needed.

Anyway, its kinda bummed because this was a mac flashed card that came with my mac pro 5.1 wich is running a vega 56 now without boot screen.

So the question, wich gpu should i get? or should i retire the mac pro 3.1?

These days this mac was retired from my studio and i use the mac pro 3.1 mostly on windows 10 now for gaming and file, NAS and domotica managing. Also, still have (dosdude) catalina installed on it for music production when idea's pop up in my head.

I really don't want to invest too much in this mac, it did its job over the years. For now i installed the old mac radeon hd 5770 in it so i can use windows, but gaming on it is a no go, and ofcourse i can't boot catalina now.

So, what is the best gpu for this mac? Everywhere i read the gtx680 is the way to go, an amd rx580 or even a vega 56 or 64 could not run because of missing SSE4.2 cpu instructions in this 3.1. And even if i could run a rx580 in osx on this 3.1, i probably still would have problems booting and gaming in windows 10 right?

Maybe a gtx 780?

thanks.
 
Where are you from? I have a spare AMD Radeon HD7950 which can be flashed for Mac EFI boot screen, could do that ;)
 
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Where re you getting flashing stuff from now ? The links I have and google only been showing me the now dead nets air growths.se sites.

I was trying to resurrect an old 3,1 CK8130AD1BJ is an 8 core 2.8ghz machine that came with a ATI RV630 card ...i have three of these cards..one labelled "CHOKE" can't work out what that means.


Might need to flash a card as having little joy so far

thanks
 
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