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mikas

macrumors 6502a
Sep 14, 2017
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649
Finland
Sorry, I wasn't clear enough. Behind the link in my post it is explained that the nVidia+AMD combo, aka in my case original GT 120 and Sapphire RX 580 together makes Apple Photo app act erratically. After removing the GT 120 I could repair the previews inside Photos app by editing them (and then canceled the editing). It all seems to be working alright now without GT 120. Apple Photos pictures and previews do work again as expected.
 
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h9826790

macrumors P6
Apr 3, 2014
16,656
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Hong Kong
Just my testing. Running benchmarks (not Furmark, just Metal tests) caused my Mac Pro to shut off. Stepping back to the lower power mode made the card stable.

XFX could be doing something questionable like drawing more power than an 8 pin in theory could do.

I would have liked to get the Sapphire, but options in these parts are limited, and stupid me didn't want to wait on an Amazon order. But it still seems like a decent choice once you go back to low power mode. I think "low power mode" is actually the same clock as the Pulse anyway. Pretty sure XFX tried to overclock higher than the Pulse.

If you used dual (both) mini 6pin to power the 8pin, then I am 100% sure the hard shutdown is not because of drawing too much from the 8pin but something else.

A single mini 6pin can deliver up to ~120W before trigger the hard shutdown protection.

To shutdown a cMP, the card need to draw more than 240W from the single 8pin, that's way way too high, and doesn't make any sense at all.

However, if you only power the 8pin with a single mini 6pin, then a hard shutdown is expected.
 

AliGT83

macrumors member
Jul 17, 2018
71
43
Sorry, I wasn't clear enough. Behind the link in my post it is explained that the nVidia+AMD combo, aka in my case original GT 120 and Sapphire RX 580 together makes Apple Photo app act erratically. After removing the GT 120 I could repair the previews inside Photos app by editing them (and then canceled the editing). It all seems to be working alright now without GT 120. Apple Photos pictures and previews do work again as expected.


Yes, I have that same combination of gpus
 

h9826790

macrumors P6
Apr 3, 2014
16,656
8,587
Hong Kong
Yes, I have that same combination of gpus

My recommendation is to remove the GT120, and only install it when required.

It's clear that the GT120 can infringe the RX580's operation. Should not put them together for regular day to day use.
 

AliGT83

macrumors member
Jul 17, 2018
71
43
My recommendation is to remove the GT120, and only install it when required.

It's clear that the GT120 can infringe the RX580's operation. Should not put them together for regular day to day use.

I think you misunderstood my post. I have no issues with this combination. Even the fan issue was solved
 

mikas

macrumors 6502a
Sep 14, 2017
900
649
Finland
With what MacOS versions and with what firmware does it run without issues with you?
I had it all working too earlier (GT120+RX580 and GT120+RX570), but with 10.13.6 and firmware 0089.B00 I do have this Apple Photos issue.
 

bookemdano

macrumors 68000
Jul 29, 2011
1,514
846
With what MacOS versions and with what firmware does it run without issues with you?
I had it all working too earlier (GT120+RX580 and GT120+RX570), but with 10.13.6 and firmware 0089.B00 I do have this Apple Photos issue.

Might the Apple Photos issue be somehow related to whether you are using a recent iPhone running iOS 11 that saves photos in HEIF format? Or was it determined that ordinary JPEGs don't show correctly either?
 

h9826790

macrumors P6
Apr 3, 2014
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Hong Kong
Might the Apple Photos issue be somehow related to whether you are using a recent iPhone running iOS 11 that saves photos in HEIF format? Or was it determined that ordinary JPEGs don't show correctly either?

My iPhone is the 6+, no HEIF support. But still the GT120 + RX580 combo still suffer from this Photo apps issue. (remove the GT120 solve it in no time)
 

mikas

macrumors 6502a
Sep 14, 2017
900
649
Finland
Maybe it is HEIF, maybe not.
iPhone 4S taken pictures do show up as all red. I do not remember the iOS version, but I think it was on iOS 9 (maximum for it) or something. iPhone 3GS pictures appear all red too, no idea of the OS anymore. iPad2 taken pics are fine? I've got an iPad air 2 too, but can't find any pics taken with it.
Screenshots are not affected.

ps. my latest iPhone SE pics are affected, and they probably are HEIF.
 
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bookemdano

macrumors 68000
Jul 29, 2011
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I see, then yes it seems to have nothing to do with HEIF. Weird.

Unfortunately I can no longer test this because I killed my GT120 the other day. I had just installed it in Slot 2 and the Sapphire RX 580 fan blades were hitting it. In haste I tried to lift up the GT120 with a metal slot cover--absolutely stupid move. Fortunately it only killed the GT120 and not the 580 or worse. I think I will buy another one on ebay eventually, but for now if I need EFI I've got my MVC-flashed 750 Ti.
 

AliGT83

macrumors member
Jul 17, 2018
71
43
With what MacOS versions and with what firmware does it run without issues with you?
I had it all working too earlier (GT120+RX580 and GT120+RX570), but with 10.13.6 and firmware 0089.B00 I do have this Apple Photos issue.

I’m on 10.13.6 FW 089
 

RamMac

macrumors newbie
Jul 12, 2018
21
4
AliGT83, could you share us which RX580 you have? Sapphire? Pulse or Nitro+? What about your Mac Pro config and do you have it connected to monitor with HDMI or Display Port? Thanks in advance...
 

AliGT83

macrumors member
Jul 17, 2018
71
43
AliGT83, could you share us which RX580 you have? Sapphire? Pulse or Nitro+? What about your Mac Pro config and do you have it connected to monitor with HDMI or Display Port? Thanks in advance...

Sapphire Pulse RX 580 8GB (the Apple recommended one)

Mac Pro 4,1 -> 5,1:
  • 24GB ram
  • 2 x 3.46 GHz 6-Core Intel Xeon (X5690)
  • RX 580 Slot 1
  • GT120 Slot 3
  • macOS 10.13.6
  • BootRom version: MP51.0089.B00
  • 24" Apple Led Cinema Display connected to GT120 via mDP
  • 55" 4k tv connected to RX 580 via HDMI port closest to logic board.
 

RamMac

macrumors newbie
Jul 12, 2018
21
4
Sapphire Pulse RX 580 8GB (the Apple recommended one)

Mac Pro 4,1 -> 5,1:
  • 24GB ram
  • 2 x 3.46 GHz 6-Core Intel Xeon (X5690)
  • RX 580 Slot 1
  • GT120 Slot 3
  • macOS 10.13.6
  • BootRom version: MP51.0089.B00
  • 24" Apple Led Cinema Display connected to GT120 via mDP
  • 55" 4k tv connected to RX 580 via HDMI port closest to logic board.
Thanks a lot!
 

h9826790

macrumors P6
Apr 3, 2014
16,656
8,587
Hong Kong
Sapphire Pulse RX 580 8GB (the Apple recommended one)

Mac Pro 4,1 -> 5,1:
  • 24GB ram
  • 2 x 3.46 GHz 6-Core Intel Xeon (X5690)
  • RX 580 Slot 1
  • GT120 Slot 3
  • macOS 10.13.6
  • BootRom version: MP51.0089.B00
  • 24" Apple Led Cinema Display connected to GT120 via mDP
  • 55" 4k tv connected to RX 580 via HDMI port closest to logic board.

May be "24" Apple Led Cinema Display connected to GT120 via mDP" make the difference.

In my case, when I hit the bug, my GT120 didn't connected to anything.

Also, I never try the HDMI connection. I only use DP connection from the RX580, not sure if that will contribute to the "Photos apps bug" as well.
 

dan gavel

macrumors newbie
Original poster
Aug 1, 2018
5
2
Just to let folks know the conclusion of this thread, I got a Sapphire RX580 Nitro 8gb for $399 Oz ,( not a bad price given its $294 on amazon and the oz dollar is only worth 73c US ) bought the 6 pin to 8 in splitter, and after I had some issues seating the card, it works ( without boot screen ) in both sierra and high sierra and more importantly it runs the TANE railway sim software at ultra settings at 60 fps, which is good enough for me. its quiet and runs cool. all good !
 
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RamMac

macrumors newbie
Jul 12, 2018
21
4
Just to let folks know the conclusion of this thread, I got a Sapphire RX580 Nitro 8gb for $399 Oz ,( not a bad price given its $294 on amazon and the oz dollar is only worth 73c US ) bought the 6 pin to 8 in splitter, and after I had some issues seating the card, it works ( without boot screen ) in both sierra and high sierra and more importantly it runs the TANE railway sim software at ultra settings at 60 fps, which is good enough for me. its quiet and runs cool. all good !
Great news @dan gavel , I did purchase the RX 580 Nitro+ card and I have been happy, only thing is that Apple Photos (version with latest MOJAVE Public Beta) app has issues showing HEIC images with LIVE PHOTOS on I have taken with my iPhone 7. Either they are completely white or black, and you can not adjust them. Do you have Mojave already?
 
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crjackson2134

macrumors 601
Mar 6, 2013
4,847
1,957
Charlotte, NC
Does anyone here with a Sapphire RX580 ever encounter graphical glitches on shutdown or restart?

About every third time I shutdown or restart, I get large jagged diagonal stripes that look like lighting bolts starting at the top left corner of the screen. Once or twice, the whole screen was filled with them.

I'm wondering if I got a defective card, or does this just happen sometimes.

Connected to monitor via DL-DVI port. Using High Sierra 12.13.6

Any feedback appreciated. First time I've ever had a issue like this through several video cards.
 

handheldgames

macrumors 68000
Apr 4, 2009
1,943
1,170
Pacific NW, USA
Does anyone here with a Sapphire RX580 ever encounter graphical glitches on shutdown or restart?

About every third time I shutdown or restart, I get large jagged diagonal stripes that look like lighting bolts starting at the top left corner of the screen. Once or twice, the whole screen was filled with them.

I'm wondering if I got a defective card, or does this just happen sometimes.

Connected to monitor via DL-DVI port. Using High Sierra 12.13.6

Any feedback appreciated. First time I've ever had a issue like this through several video cards.

On a rx480, I've seen graphical corruption on non efi cards that's a result of the spinning shut down animation displayed from what looks like improper bit-depth initialization of vram display space. The amount of the distortion varies in size.

Some times I'll also get a white ANSI block character at location 0,0
 
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bookemdano

macrumors 68000
Jul 29, 2011
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846
It may depend on the monitor. I'm running @ 4K on a Dell P2715Q and I've seen small white rectangles at the top left corner of my screen during shutdowns and reboots with the RX 580 installed. I'll try to pay more attention next time I see them and get a pic (although they don't last long when they do show).
 

crjackson2134

macrumors 601
Mar 6, 2013
4,847
1,957
Charlotte, NC
On a rx480, I've seen graphical corruption on non efi cards that's a result of the spinning shut down animation displayed from what looks like improper bit-depth initialization of vram display space. The amount of the distortion varies in size.

Some times I'll also get a white ANSI block character at location 0,0

The spinning animation doesn’t even present itself since pulling the old card. In fact, screen doesn’t even go black anymore. Wallpaper just fades dark for a bit, then bang, machine is off.
It may depend on the monitor. I'm running @ 4K on a Dell P2715Q and I've seen small white rectangles at the top left corner of my screen during shutdowns and reboots with the RX 580 installed. I'll try to pay more attention next time I see them and get a pic (although they don't last long when they do show).

I think you’re onto something here too. I’m still at 24bit color, I’ve seen others with this card doing 30bit I believe.
 
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crjackson2134

macrumors 601
Mar 6, 2013
4,847
1,957
Charlotte, NC
I have no clue why this would matter, but moving the RX580 to PCIe 2 seems to have stopped the artifact population. And it fits better, too bad it blocks Slot 3 now.

I had to remove my SSUBX to accommodate it, but I guess I don't need it anymore anyway.
 

bookemdano

macrumors 68000
Jul 29, 2011
1,514
846
Were you seeing the artifacts at any time other than reboots?

With the card in Slot 2 are you still blocked from running Boot Camp Assistant? I have to say that seeing these coding changes to block FV2 and Boot Camp on the cMP makes me more pessimistic on the boot screens front. It will suck even more for people who specifically sought out a 7950, GTX 680, or worse--paid big $$ for an MVC-flashed NVIDIA card specifically so they could run Mojave and use FV2 and Boot Camp. I wonder if those blocks were in place since DP2 or if they were added in a subsequent beta due to bug reports.
 

crjackson2134

macrumors 601
Mar 6, 2013
4,847
1,957
Charlotte, NC
Were you seeing the artifacts at any time other than reboots?

With the card in Slot 2 are you still blocked from running Boot Camp Assistant? I have to say that seeing these coding changes to block FV2 and Boot Camp on the cMP makes me more pessimistic on the boot screens front. It will suck even more for people who specifically sought out a 7950, GTX 680, or worse--paid big $$ for an MVC-flashed NVIDIA card specifically so they could run Mojave and use FV2 and Boot Camp. I wonder if those blocks were in place since DP2 or if they were added in a subsequent beta due to bug reports.

Yes, still blocked from BCA/FV2. In DP2, I was able to use both with my EFI cards. In fact, until yesterday I was able to use BootPicker and Startup Disk effectively on my HD5870. I didn't test BCA but I suspect it would have worked fine.

If it weren't such a PITA to remove/reinstall this RX580, I'd pull it and put my old card back in just to test. It's finally working well (except I had to remove my SSUBX), so I'm afraid if I hold my head wrong, it'll stop. Not touching it right now.
 

Jayson A

macrumors 68030
Sep 16, 2014
2,671
1,935
I can't wait to build myself a proper PC so that my Mac can go back to just being a Mac and I can put my 580 in my PC.
 
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