My 7950 Just Died :(

Discussion in 'Mac Pro' started by Moogintroll, Oct 30, 2016.

  1. Moogintroll macrumors member

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    #1
    So, as the title says, my Sapphire 7950 Mac edition just died in spectacular fashion, and now I'm in need of advice:

    So, I've got a 4,1 that's been flashed to 5,1. What can I upgrade to that allows me to keep my boot screen, doesn't require an external PSU and won't cost me my firstborn? Or am I basically out of luck?

    Apologies if people are asking this all the time but I haven't looked into this stuff since early 2013 and I don't even know if modern cards can be made to work with ye olde cheese-graters.
     
  2. Flint Ironstag macrumors 6502a

    Flint Ironstag

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  3. Moogintroll thread starter macrumors member

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    #3
    for work: Xcode, a bit of Photoshop and Illustrator, maybe some light 3D and CAD work but nothing that would require something like a FirePro.

    For Fun: Booting it into windows for gaming.

    Basically I wouldn't be replacing the 7950 if it hadn't croaked on me.
     
  4. SoyCapitanSoyCapitan macrumors 68040

    SoyCapitanSoyCapitan

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    #4
    The RX470 is a good balance but needs Sierra.

    Used GTX970 offers similar price and performance but you have to deal with finicky driver updates and bugs.
     
  5. Moogintroll thread starter macrumors member

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    #5
    Pretty cool that the 470 works. I'm assuming that my options are limited if I want to keep my boot screen though?
     
  6. ActionableMango macrumors 604

    ActionableMango

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    #6
    IIRC, the best you can do for native drivers and boot screens is R9 280X on the AMD side and GTX680 on the Nvidia side.
     
  7. owbp macrumors 6502a

    owbp

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    #7
    As @ActionableMango said, GTX680 and R9 280(X) (or again 7950/70) is the only DIY option that will give you bootscreens after flashing.

    If you want to buy finished product and newer cards, search MacVidCards (they also have EU partner ).
     
  8. Moogintroll thread starter macrumors member

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    #8
    Awesomesauce, didn't know MVC had a UK outlet (I'm more than happy to take advantage of the slump in Sterling). The 280 is basically a rebranded 7970, right?

    (Also, I get that it's silly wanting a boot screen, but if I didn't like things like that, I'd just buy a PC)
     
  9. SoyCapitanSoyCapitan macrumors 68040

    SoyCapitanSoyCapitan

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    #9
    470 shows the loading screen under Sierra. If you want to dual boot use the start up disk prefs.
     
  10. Moogintroll thread starter macrumors member

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    #10
    Yea, it's damn tempting for the price.
     
  11. LightBulbFun macrumors 6502a

    LightBulbFun

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    #11
    Just want to point out that last I checked to get the RX 470 working under sierra you do have to mod the Driver for the card (add the device id) and that this can end up broken like nvidia web drivers after an OS update. also a PC RX470 will not show any sort of loading screen you will just be at a blank screen till your login window pops up or your desktop. (This last bit is true for any PC card) only the RX 460 works OOB in sierra
     
  12. Moogintroll thread starter macrumors member

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    #12
    Which kinda sucks, considering that from what I'm reading, the 460 seems significantly less powerful than my old 7950. Guess you get what you pay for though.
     
  13. h9826790 macrumors 604

    h9826790

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    #13
    Not entirely correct. For the current MacOS (10.12.1 official release).

    The RX460 will show the loading screen (at the very beginning), and able to use recovery partition.

    In fact, AFAIK, only the card has OSX driver support can use the recovery partition now, a flashed card but need 3rd party driver (e.g. Maxwell card) may shows nothing in the recovery partition.

    I didn't have any unsupported card. However, I did test the loading screen (and recovery partition) by switching my 7950 to the PC VBIOS, it works flawlessly.

    So, the boot screen now is only for choosing the boot partition, which can be done by hotkey, or via system preference.
     
  14. SoyCapitanSoyCapitan macrumors 68040

    SoyCapitanSoyCapitan

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    #14
    CORRECTION time.

    RX470 can load Sierra after any update and adding the device ID takes 30 seconds.

    Polaris cards are showing the loading screen with the Apple logo.
     
  15. Moogintroll thread starter macrumors member

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    #15
    So, just to be straight here, you're saying that if I pick up a 470 and I'm running Sierra, I can install it and all I'll lose out on is the boot volume screen?
     
  16. LightBulbFun macrumors 6502a

    LightBulbFun

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    #16
    Depending on your system it takes 30 seconds to install an Nvidia web driver :) if you are looking for a true OOB Card the RX470 is not currently one to get. also Polaris 10 cards could end up like how GCN 1.1 and cayman cards ended up if apple only uses Polaris 11
     
  17. SoyCapitanSoyCapitan macrumors 68040

    SoyCapitanSoyCapitan

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    #17
    Oh come on. Puleeze don't the Nvidia web driver install compared to the Polaris mod. The web driver issues have created hundreds of threads of warnings and panic attacks.
    --- Post Merged, Oct 31, 2016 ---
    You lose the boot selection and SIP. You get the loading screen and the OS boots after any Sierra update - then you just add the device ID again, but that only needs to be done if the Sierra update also updated the 4100.kext. If it didn't update the kext then you won't need to mod anything.
     
  18. Moogintroll thread starter macrumors member

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    #18
    Yea but the driver install is just a one time deal though, right? As for it not working OOB, I'm I'm not above a bit of hacking.
    --- Post Merged, Oct 31, 2016 ---
    Heh, I had to switch SIP off anyway because of an Xcode bug that was blocking the simulator from running.
     
  19. SoyCapitanSoyCapitan macrumors 68040

    SoyCapitanSoyCapitan

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    #19
    Nvidia's driver can be a pain because unless you pay ridic money for that EFI mod (which is basically like paying for sometime to patch warez) then you need a secondary Apple card to install the drivers, open your Mac and then install the card again. Even minor security updates break the Nvidia web drivers. Then when you get that out of the way you realise the web drivers are full of OpenCL bugs and don't perform anything like their Windows counterparts, which defeats the purpose of them in the first place.

    So the best choice for a cMP is a midrange card with native or close to native macOS support. Anything else is a waste.
     
  20. Moogintroll thread starter macrumors member

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    #20
    Ugh, something tells me that I'm going to end up looking for another 7950 to flash.
     
  21. SoyCapitanSoyCapitan macrumors 68040

    SoyCapitanSoyCapitan

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    #21
    Lol. It's a good card for general use.
     
  22. Moogintroll thread starter macrumors member

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    #22
    I agree, it's served me well (until last night) The only complaint being the need to run the OpenGL extension viewer benchmark to get the fans to behave.

    I figured it was worth using its demise to see if an upgrade was viable though. Guess it's more bother than it's worth. Why the hell did Apple have to introduce the trashcan?
     
  23. SoyCapitanSoyCapitan macrumors 68040

    SoyCapitanSoyCapitan

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    #23
    Th fans kick off with newer AMD and Nvidia cards too. This is down to Apple's SMC not being very compatible with new hardware. They don't quite speak the same lingo to each other.
     
  24. ActionableMango, Oct 31, 2016
    Last edited: Oct 31, 2016

    ActionableMango macrumors 604

    ActionableMango

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    #24
    You can fix that with MacsFanControl. @h9826790 has instructions somewhere.

    No it's not just boot screens, it's like a dozen things. For example you wouldn't have been able to do your 4,1 to 5,1 flash without an EFI card. GPU audio. PCIe 2.0. Easy Maxwell web driver updates. Some other stuff.

    Whether or not those things are important to you varies I suppose.
     
  25. AlexMaximus macrumors 6502

    AlexMaximus

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    #25
    Wow! I did not know that. Thanks for the heads up on the web driver issue. Maybe you can give me your opinion regarding a Sierra Upgrade on my MP 5,1. So far everything works really great for me on El Capitan. My card however is a flashed version with a working Apple logo on startup. I run my HTC Vive from bootcamp on Win7. In case I would upgrade to the new Sierra MacOS, do you think I will encounter some trouble? Could an upgrade to Sierra screw up my Win7 bootcamp partition ?(I hope not, otherwise I just keep everything on El Capitan - plus I am not sure if HP will issue a new driver for my first version HP envy printer..)

    Cheers
    --- Post Merged, Oct 31, 2016 ---
    A nice overview regarding performance compared to other options may give you this article here:

    http://barefeats.com/sierra_rx480.html


    :)
     

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