Hello everybody,
News from the battlefield : The 4,1 MacPro at my home was in Work In Progress... There was a fresh install of Sierra 10.12.6 on a SSD, and a beginning of a fresh Install of W10 Pro in EFI mode on another SSD.
I had troubles with the fact that everityme you restart from W10, it automatically instals the drivers of the GT120 which are faulty on W10, and cause a restart loop (haha, restart, again, haha…..) when you want to access W10.
Had to uninstall the drivers in safe mode, and found a way to tell windows stop automatically installing drivers for piece of hardware he doesn’t know.
After all of this, I had the possibility to instal the drivers of the RX 580 in W10.
Well, big news, the card seems to be alright ! Plugged two screens, and ran Furmark.
100% usage in 1600*1200 mode and anti-aliasing X2. The card heat to 80°. I just let it few mins, not a whole half-hour.
—> No restarts !
—> The DVI output has normal colors !
—> I can even keep the GT120 plugged (in slot 3), no problem.
So seems to be an Apple compatibility problem.
Now, under Sierra :
Well, big news, no problem under Sierra 10.12.6. I promise you, no problems !! I don’t understand.
Two screens running, launched furmark here too. No restarts.
I can keep the GT120 here too. I can even use it ! One screen on the GT120, the another one the RX580.
Making the Furmark stress window passing from a screen to another one (so from a graphic card from another) was quite funny. Huge huge difference as you could bet.
The MacPro I own is an early 2009 (like the one at work), eight core (like at work) but a bit more faster (2x2,66 GHz).
The Sierra’s SSD was in the drive day at home, while it was in drive bay 1 at work.
Sierra’s firmware : MP51.007F.B03
I just checked others 4,1 at work from the same batch, it’s this firmware too. So logically, I first had problems at work on a 4,1 with MP51.007F.B03 firmware too…
This makes no sense…
Well, I wanted to buy a graphic card for the cMP I have at home, I think i’ll keep this one ^^
I don’t know if it can help but here are the specs of the card attached (using GPU-Z) :
Board ID is 113-4E353BU-O50
Well, it's good news for me at home, but i don't know what i could do for the cMP at work...