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General Category => OSX and Graphics Cards => Topic started by: MacSleeper on March 19, 2013, 09:48:49 PM



Title: Sapphire 7950 Mac Edition now shipping
Post by: MacSleeper on March 19, 2013, 09:48:49 PM
Newegg has the Sapphire 7950 Mac Edition for $480 in stock. That is about a $200 premium over the cost of a PC 7950. I wouldn't mind paying extra for a Mac version but $200 seems like financial sodomy. Sadly I'm still tempted to pull the trigger.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814202027


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: pianoguy on March 20, 2013, 11:32:47 AM
Does it work on a Mac Pro 1, 1? I am currently on the 6870 and would love the upgrade.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: netkas on March 20, 2013, 12:09:26 PM
Well, it needs 10.8.3 and mountain lion doesn't support 1,1 or 1,2...officially.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: fairbanx on March 20, 2013, 04:18:28 PM
I wonder why the card is compatible only in Mac Pro 5,1 (2010) an later but not in 4,1 (2009)?

Quote
The SAPPHIRE HD 7950 Mac Edition is compatible with Apple Mac Pro models from 2010 and later with an available PCI-Express x16 slot.
Source: http://www.sapphiretech.com/presentation/media/media_index.aspx?psn=0004&articleID=5083&lid=1


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: Rominator on March 20, 2013, 07:32:47 PM
I should be able to clarify later today....


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: pianoguy on March 20, 2013, 09:13:12 PM
I should be able to clarify later today....

Can you clarify on what it is you will be clarifying? Will it be whether this card works on the Mac pro 1,1, or  whether it works on Mac pros 4,1 (as per the other gentlemans question)? Both?


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: Rominator on March 20, 2013, 10:17:09 PM
works on ALL Mac Pros


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: pianoguy on March 20, 2013, 11:03:21 PM
YEY. I will order one now. For my Mac pro 1,1 will I need the Mac edition, or can I use a of one and "flash" it? Lastly, will I NEED to update to mountain lion? I'm on Lion with a 6870. Thanks


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: mysticalos on March 21, 2013, 08:04:21 AM
One thing that is baffling me. They list min system requirement as 10.7.5 or 10.8.2. As we know, neither has 7000 series kexts. Is that just a goof on their part or does this card come with newer ati kexts for 10.7.5? It could open door to macs that cannot run 10.8.3 if we got our hands on such kexts if they exist.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: Rominator on March 21, 2013, 10:10:39 AM
Disc in box has 10.7.5 drivers but I have had poor luck with them so far.

Also 10.8.2 drivers.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: dyttioaoa? on March 21, 2013, 01:30:13 PM
Can you pls dump both BIOSes (the Mac EFI and the Win GOP UEFI) and upload them here?

ta


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: mysticalos on April 05, 2013, 08:00:43 AM
So, i've noticed something with my official card after using it a while. I see a lot of flicker on very top and bottom edge of screen, like a random flash of lines in it from time to time on desktop

not sure how else to explain it. i'm hoping it's just a driver issue. I have checked to ensure card is staying cool and fan is working, it's not that. However the flicker is really annoying. it's not constant it's periodic.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: mysticalos on April 07, 2013, 12:45:55 AM
to make matters worse, found another fatal bug in card. it seems to cause deadlocks if you use OS X's screen shot feature

command-shift-4 followed by hitting spacebar on a window or something, this instantly deadlocked the screen and made it impossible to exit the screen shot interface and forced a hard reboot. between that and flicker, i wonder if i can convince newegg to take it back, if not, if i can rant to sapphire about the issues it seems to have.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: DanielCoffey on April 07, 2013, 07:20:16 AM
My non-Mac Sapphire 7950 3Gb works fine with screenshots. Just tried now.

I do get occasional artifacting in Skyrim but have not been able to pin it down to any one area or circumstance. It affects different areas of the screen and is too fast to observe. It may just be the graphics options I have chosen or a lighting mod however. I will keep an eye on it.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: mysticalos on April 07, 2013, 07:36:00 PM
does your skyrim issue look like this?

http://mysticalos.com/distorted_7950.jpg


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: Mounhotep on April 08, 2013, 09:07:15 AM
Can you pls dump both BIOSes (the Mac EFI and the Win GOP UEFI) and upload them here?

ta


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: dyttioaoa? on April 08, 2013, 09:09:36 AM
Can you pls dump both BIOSes (the Mac EFI and the Win GOP UEFI) and upload them here?

ta

ta!


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: jamer72 on April 14, 2013, 05:56:41 PM
So, i've noticed something with my official card after using it a while. I see a lot of flicker on very top and bottom edge of screen, like a random flash of lines in it from time to time on desktop

not sure how else to explain it. i'm hoping it's just a driver issue. I have checked to ensure card is staying cool and fan is working, it's not that. However the flicker is really annoying. it's not constant it's periodic.

Hi, I have the same problem with my official card, too. It's very strange because with Windows 7, under Bootcamp, the card works perfect.
I have a Mid 2010 Mac Pro and the problem is randomly and imprevisible under OS X only. I've done a lot of tests under 10.7.5, 10.8.2 and 10.8.3 without a solution. Under 10.7.5 and 10.8.2 I've tried with and without drivers that come in the CD and the problems appears when I load the drivers. On 10.8.3 and the las 10.8.4 beta the problem continues.
I wrote to Sapphire Tech Support explaining for the problem, including video captures and the tech support guy told that my card possibly is defective, and he told me to request a replacement RMA.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: netkas on April 15, 2013, 11:46:09 AM
Could somebody, who bought sapphire card, write to their tech support and ask question about default screen resolution being much higher than the real screen resolution ?


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: fhenry on April 15, 2013, 12:57:31 PM
So, i've noticed something with my official card after using it a while. I see a lot of flicker on very top and bottom edge of screen, like a random flash of lines in it from time to time on desktop

not sure how else to explain it. i'm hoping it's just a driver issue. I have checked to ensure card is staying cool and fan is working, it's not that. However the flicker is really annoying. it's not constant it's periodic.

Hi, I have the same problem with my official card, too. It's very strange because with Windows 7, under Bootcamp, the card works perfect.
I have a Mid 2010 Mac Pro and the problem is randomly and imprevisible under OS X only. I've done a lot of tests under 10.7.5, 10.8.2 and 10.8.3 without a solution. Under 10.7.5 and 10.8.2 I've tried with and without drivers that come in the CD and the problems appears when I load the drivers. On 10.8.3 and the las 10.8.4 beta the problem continues.
I wrote to Sapphire Tech Support explaining for the problem, including video captures and the tech support guy told that my card possibly is defective, and he told me to request a replacement RMA.
may be a chance to have good driver and get it working on mp 1,1 under 10,7,5 !


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: netkas on April 15, 2013, 02:13:23 PM
Yeah, possible.

Need to write tech support, that one have to use Lion with 32-bit kernel due to some of his hardware having only 32-bit kexts/drivers.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: mysticalos on April 24, 2013, 10:36:35 PM
Could somebody, who bought sapphire card, write to their tech support and ask question about default screen resolution being much higher than the real screen resolution ?
i plan to, among other things. it's obnoxious. i'm still trying to collect feedback of other issues.

I'd actually like to talk to anyone else who has a real sapphire if they are having any of these issues? http://us.battle.net/wow/en/forum/topic/8568957929 . I have blizzard looking into it possibly being on their end. they've even forwarded it to ati to see if it's at driver end. I have a hulking suspicion though it's the card itself.

another behavior i notice with the sapphire card is flickers on top and bottom from time to time. happens maybe once in a while and only once. i'll see a split second black line flicker through top and bottom of screen then not again for maybe 30 min. hard to really explain it or capture it. was easier to capture the corrupt textures in WoW which from what i can analyze has nothing to do with heat or tearing. It seems the texture just gets botched up in vram and forcing a reload (such as changing texture resolution in wow) wipes out the bad graphic and replaces it with good. perhaps bad vram? or just something wonky with driver. who knows. my issue is that i can't find other users with an official card to bring a larger complaint to sapphire about the issues.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: blacksheep on April 25, 2013, 12:51:15 AM
Could somebody, who bought sapphire card, write to their tech support and ask question about default screen resolution being much higher than the real screen resolution ?
i plan to

Please do. And add this:
Quote from: netkas

Need to write tech support, that one have to use Lion with 32-bit kernel due to some of his hardware having only 32-bit kexts/drivers.

Maybe someday they will fix 32-bit drivers... maybe...


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: mysticalos on May 07, 2013, 11:36:20 PM
Could somebody, who bought sapphire card, write to their tech support and ask question about default screen resolution being much higher than the real screen resolution ?
i plan to, among other things. it's obnoxious. i'm still trying to collect feedback of other issues.

I'd actually like to talk to anyone else who has a real sapphire if they are having any of these issues? http://us.battle.net/wow/en/forum/topic/8568957929 . I have blizzard looking into it possibly being on their end. they've even forwarded it to ati to see if it's at driver end. I have a hulking suspicion though it's the card itself.

another behavior i notice with the sapphire card is flickers on top and bottom from time to time. happens maybe once in a while and only once. i'll see a split second black line flicker through top and bottom of screen then not again for maybe 30 min. hard to really explain it or capture it. was easier to capture the corrupt textures in WoW which from what i can analyze has nothing to do with heat or tearing. It seems the texture just gets botched up in vram and forcing a reload (such as changing texture resolution in wow) wipes out the bad graphic and replaces it with good. perhaps bad vram? or just something wonky with driver. who knows. my issue is that i can't find other users with an official card to bring a larger complaint to sapphire about the issues.

so, sapphire support isn't very useful. they pretty much told me that their card is designed for mac pro 2010 only and since i'm using it in a 2008 they can't give any support cause it's unsupported config. i tried explaining that any 2008 or higher has appropriate EFI, PCI express 2, and software support without modding but i don't think that matters much. clearly this is why the native resolution is a mess and i'm having other problems with it. :\ I'm just going to argue with them until they take the thing back and just use my 5870 until the bitter end of this machine.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: blacksheep on May 08, 2013, 09:30:23 AM
Tell them, that you've just bought 4,1 and it's still that same. 4,1 is lowest model listed in system requirements on their website.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: mysticalos on May 09, 2013, 12:13:38 AM
Tell them, that you've just bought 4,1 and it's still that same. 4,1 is lowest model listed in system requirements on their website.
i finally got them to RMA it cause i do think I have a dud, i mean

http://mysticalos.com/images/MoP/distorted_video/

when i get a new one i'll see if it has any changes in process, such as maybe a new rom version (doubt it but hey you never know)


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: luh on May 12, 2013, 05:17:51 PM
Any differences between the Sapphire Mac Edition and the Sapphire normal edition? Would it have the same behaviour? I'm thinking about getting one for my MacPro3,1 ...


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: JohnFZ on May 15, 2013, 03:21:08 PM
Any differences between the Sapphire Mac Edition and the Sapphire normal edition? Would it have the same behaviour? I'm thinking about getting one for my MacPro3,1 ...

Probably the EFI is the difference (other than the custom white case).


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: jackvancs on September 07, 2013, 01:39:19 AM
Could somebody, who bought sapphire card, write to their tech support and ask question about default screen resolution being much higher than the real screen resolution ?
i plan to, among other things. it's obnoxious. i'm still trying to collect feedback of other issues.

I'd actually like to talk to anyone else who has a real sapphire if they are having any of these issues? http://us.battle.net/wow/en/forum/topic/8568957929 . I have blizzard looking into it possibly being on their end. they've even forwarded it to ati to see if it's at driver end. I have a hulking suspicion though it's the card itself.

another behavior i notice with the sapphire card is flickers on top and bottom from time to time. happens maybe once in a while and only once. i'll see a split second black line flicker through top and bottom of screen then not again for maybe 30 min. hard to really explain it or capture it. was easier to capture the corrupt textures in WoW which from what i can analyze has nothing to do with heat or tearing. It seems the texture just gets botched up in vram and forcing a reload (such as changing texture resolution in wow) wipes out the bad graphic and replaces it with good. perhaps bad vram? or just something wonky with driver. who knows. my issue is that i can't find other users with an official card to bring a larger complaint to sapphire about the issues.

I am on my second of these cards (Sapphire 7950 3GB Mac Edition) and both have had the issues you describe on my Mac Pro 5,1. It's annoying to say the least, especially for a $500 card. I haven't decided whether to keep this second one and hope there's a firmware or software fix or return it and go back to the 5770 the came with it, which by the way, has no such problems. I've got a ticket in with Sapphire tech support and will post here if I hear anything important.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: mysticalos on September 09, 2013, 09:20:03 PM
I eventually gave up. I'm hoping for a new computer soon anyways. It acts up only in WoW and occasionally flickers on desktop with lines through top and bottom of screen or maybe a full screen flash of garble for a very brief second. The issue is super rare on desktop and I may observe it once or twice a day. In wow I avoid problem by turning texture resolution down. The issue only happens with high resolution textures based on my testing. It doesn't seem ATI, blizzard, or sapphire want to deal with this problem


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: mysticalos on September 13, 2013, 11:57:46 PM
Card has escalated to full blown tearing at the severe level. I highly recommend just staying away from these. Their support is aweful considering first card i sent them got sent back with "nothing wrong" despite the problems. and now it's even worse.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: Squishy Tia on September 15, 2013, 12:06:57 AM
I eventually gave up. I'm hoping for a new computer soon anyways. It acts up only in WoW and occasionally flickers on desktop with lines through top and bottom of screen or maybe a full screen flash of garble for a very brief second. The issue is super rare on desktop and I may observe it once or twice a day. In wow I avoid problem by turning texture resolution down. The issue only happens with high resolution textures based on my testing. It doesn't seem ATI, blizzard, or sapphire want to deal with this problem

Meowrs!

Which connector to you have the display connected to? If it is the DVI or HDMI connector, this may be a poorly shielded connection (and/or cable). All of the AMD cards I've had so far failed with the original HDMI cable I had before, including the HDMI-DVI cable I had for my old monitor (Westinghouse L2410NM). On that monitor and my TV DVI and HDMI connections would suffer flickering with the old cable while the 22 AWG cable from monoprice.com that I use now does not suffer this at all. MDP to HDMI/DVI should not suffer this at all except in very poorly shielded cabling situations as noted here.

If you could, I'd try getting a 22 or 24 AWG shielded cable (most are 28 or 30 AWG which is awful) and see if the black bars/flickering continues. The distorted textures could be the drivers or the card, but the flickering is usually endemic to the HDMI clock channel.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: mysticalos on September 17, 2013, 02:14:34 AM
I use DVI.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: mysticalos on September 25, 2013, 07:50:22 PM
Graphics corruption is now occurring in more places. Today it was dock. I'm skeptic to RMA again when last time I did they sent the SAME card back (matching serial) unrepaired

(http://mysticalos.com/images/distorted_video/graphics_corruption_dock.jpg)

Tearing is also getting worse in games too. Guess I can attempt to RMA again and see if their support quality is even better. If they send it back still screwed up again I'll open a BBB complaint and demand a full refund. Their support is awful and nothing like EVGA.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: DeckardTrinity on September 25, 2013, 10:23:36 PM
Where did you buy from? I bought mine @ Amazon back in April, and they gladly put in a replacement order after I detailed my woes. They even offered a refund, which after getting caught up on this thread, I may just do.

So... my issue is even worse. Machine won't boot half the time when this card is in - and sometimes won't even get to the Apple chime. I'm running a MP 5,1, 3.33ghz 6-core w/12GB of Crucial registered RAM. Originally I bought the 7950 to replace a failing 5870 (even after repairing that 5870 by swapping out the fan / hs, it still had issues).

I'm not 100% convinced that the video cards are the issue here tho, as I get brilliant performance on this machine when I can manage to get it to boot properly. But the number of times where I've booted and had the display go black before the login screen, or no chime, or wake from sleep and then get spinning beachball of death, etc... just one too many at this point. (and joy, a new symptom recently - boot or wake from sleep, and machine gets very sluggish, then stops - well, never fully stops, the mouse is ALWAYS moveable! every time! but everything else is frozen).

If any of you that have the 7950 in any sort of Mac Pro could do me a favor I'd really appreciate it. Just run the Apple Hardware Test on your machine, and see if it fails. Mine fails every single time with the 7950 in with the following error:

4SNS/1/C0000008: Te1S--124

which, I've been told by my support contact at Apple (yes I have been working these issues with them over the last couple of months as well, thank god they are so responsive) indicates an abnormally high reading on PCIe Slot 1 (exactly where the video card is installed). When I swap back to the 5870, AHT comes back clean every time (even with the Crucial RAM in).


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: mysticalos on September 26, 2013, 06:16:14 PM
Hardware test is clean for me. in fact, i even grabbed techtool for it better vram testing and still clean. I do know when i put 5870 back in, the problems do go away except for super minor WoW specific issues that may just be an actual WoW issue. When I put nvidia 680 in, problems also went away (although performance tanked pretty hard, which is why i ended up selling 680 and staying with 7950.)

I've pooled almost 6k waiting on a new mac pro (before i found out it was a trash can). I'm still waiting for the trash can to launch anyways to see what it does for modding. I can almost see TonyMac getting more traffic after that abomination comes out unless apple comes to senses by launch and make some revisions to that garbage (not likely).


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: blacksheep on September 26, 2013, 07:25:09 PM
Graphics corruption is now occurring in more places. Today it was dock. I'm skeptic to RMA again when last time I did they sent the SAME card back (matching serial) unrepaired

(http://mysticalos.com/images/distorted_video/graphics_corruption_dock.jpg)

Tearing is also getting worse in games too. Guess I can attempt to RMA again and see if their support quality is even better. If they send it back still screwed up again I'll open a BBB complaint and demand a full refund. Their support is awful and nothing like EVGA.

Demand a refund now and buy yourself a nice PC 7950 w/ Boost (even from Sapphire) and flash it. Then OC it using Hex editor to ~1200/5500 + 5.0 GT/s mod and enjoy.
It's extremely weird that there is so many complaints on Mac Edition (tearing, flickering, artifacts etc.) while flashed PC ones perform great in OS X. Seems they screwed something up...


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: DeckardTrinity on September 27, 2013, 04:18:35 AM
Yeah, I got the refund, will continue to evaluate options. I'm actually starting to seriously consider putting all the stock parts back into my MP, sell it, and build a hackintosh. *sigh* this was not what I expected when I switched to Mac six years ago. (second machine in a row that has failed this spectacularly).

Flashed PC 7950 could be an option too... when it worked, Battlefield 3 absolutely screamed on the Win7 bootcamp partition.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: DeckardTrinity on September 28, 2013, 11:03:12 PM
Well I decided to give the PC Sapphire 7950 w/Boost a try, and everything is working great! Flashed original ROM w/Netkas EFI script, popped the resistor, and now have glorious boot screen with decent graphics @ 5.0GT/s.

One thing I did notice is that I'm benching quite a bit lower on the Valley / Heaven benches than with the Mac version of the Sapphire 7950 (ran the benchmarks on Win7 BC). I haven't OC'd the PC one, but I am wondering if maybe the Mac one is already OC'd? (I never looked closely enough at the speeds).

Also I did a before / after bench with just the PC card on the two benches and there is little if any difference in speeds (less than 1FPS average before / after). So... I guess the 2.5 vs 5.0 really doesn't make much difference?

Oh... and funnily enough, AHT still gives an error (and no error on stock 5870). Of course, I was an idiot and didn't run it before I popped the resistor, so no clue if that is what is causing the problem.


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: jimj on September 30, 2013, 03:00:56 PM
For what it is worth (e.g. others may have different experiences...)

I have a mac pro 4,1 that I have flashed with the 5,1 mac ROM image.

I run a sapphire AMD 7950 boost (not the mac edition), and I have EFI flashed this card and removed the resistor for 5 GT operation.

I run X5680 processors (12 cores total).

I run Mac OS X 10.8.5

I have no tearing or artifacts, and I have no problems with the Apple Hardware Test from a 5,1 machine. The AHT that originally shipped with my 4,1 system will not work with my flashed motherboard and unsupported processors even if I use the original GT120 video card.

-JimJ


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: detroit808 on January 21, 2014, 02:43:31 PM
I was keen to flash a PC card but couldn't get anyone to answer any of my questions here. So I bought a Sapphire 7950 Mac from OWC. I've put it in a Mac Pro 4,1 flashed to 5,1 with Xeon W3690, 32GB RAM. It didn't like being in the machine with the original NVidia GT120. I was hoping to leave that card in attached to the display (Apple Cinema Display 23" 1920x1200 non glass via DVI) while the 7950 took over at FCPX GPU processing, unfortunately, in this arrangement, FCPX will only use the GPU the display is connected to. To confirm this I performed the BruceX to ProRes benchmark with FCPX 10.1. With the display connected to the GT120 in slot 4 and the 7950 in slot one, the test took about 360 seconds, with the display connected to the 7950 in slot 1 the test took 39 seconds.

Luxmark 2.1 sala scene score is 1692, full room scene 932.

There's a massive issue with using the Apple DVI to MiniDisplayPort adapter, huge flickering, unreadable display. Another strange thing is that the frame buffer is fixed at 2560x1600 and the Display System Preference Resolution Best for Display is fixed at 2560x1600 on my Apple Cinema Display 1920x1200. I had to change this to Scaled and select 1920x1200. Weird.

In Safari I load http://www.apple.com/ipad-air/ it displays massive flickering and distortion. Not sure if the PC cards do the same thing, can anyone confirm? I'm guessing this is software related.

Running 10.9.1 (worst OS in Apple's history IMO)


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: snakecoils on November 22, 2018, 09:24:26 PM
Hello,
I joined this old thread because I've just purchased a second-hand HD7950 Mac Edition but I am having severe troubles in outputting a VGA signal (via DVI-I / VGA adapter).
If the VGA is the only monitor connected I can happily see the boot menu and the OSX progress bar until the moment the desktop should appear. But then, nothing, the display went off.
If a second display is connected either to HDMI or one of the miniDP port, the priority goes to the digital video out for boot menu but nothing is displayed on the VGA monitor.
Changing the video settings for the VGA monitor on the Control Panel didn't help at all, the monitor remains black.
Today I have also tried a DVI-D / VGA adapter (yes, they exists) and I had partially a success, one of the two adapter I purchased show the video signal on the VGA but it does not remain locked, I think because the converted analog levels are too low to be stable enough for my analog monitor.
The question is: has anyone experienced this issue on his Mac Edition card? Recently I have also flashed a Reference 7970 card using the "bundle" method and every video out port works as it should (including the HDMI) but the VGA part of DVI-I port has the same issue of the HD7950 Mac Edition.
This behaviour happened also before the BIOS flashing (using the video card unflashed in OSX environment) so I think it is not really a Mac firmware issue.

Any idea or suggestion will be greatly appriciated, maybe a different DVI-I / VGA adapter? For example the Apple adapter (the white short cable) show some signs of life while the common ones with connectors tied in melted plastic tends to show nothing. Of course on BootCamp side (Windows 7) everything works, no surprise here...


Title: Re: Sapphire 7950 Mac Edition now shipping
Post by: streak8047 on March 27, 2020, 11:51:35 PM
Well, it needs 10.8.3 and mountain lion doesn't support 1,1 or 1,2...officially.

Sapphire AMD Apple Radeon HD 7950 flashed ,working perfectly for DVI display ,not working HDMI,and Display port ,this issues was because flashing or some other else