Confirmed and Possible Flashable GTX 680 Models

[jdryyz]

I've also just read that you won't see anything above 1.1 unless the system puts demands on the card. Hmm...

I will search for an older version of NVFlash. 5.134 seems like a good choice.

You won't get PCI-e 2.0 in Windows until after it is flashed. That's one of the benefits of flashing.

Others have reported that the latest NVFlash doesn't work. (Doesn't hurt, but doesn't work either.) See just a few posts up in the thread.

[doublepost=1459386967][/doublepost]Flash success!! What GPU-Z reports now makes more sense. It says 2.0 first but also says @ 1.1 meaning it is not working at 2.0 speeds at the moment.

Had a couple of weird boot delays but probably due to Windows Bootcamp control panel.

 

[h9826790]

I am not sure if the system will switch to 1.1 when 2.0 bandwidth is not required.

I saw that on my 7950 as well. Jumping between 1.1 and 2.0 when check GPU-Z occasionally.

Since my 2nd GPU is in a x4 slot. So, 2.0 and 1.1 will make a noticeable difference. From the benchmarks I can tell 2.0 is working properly, but just sometimes see 1.1 on GPU-Z when it's idle.

 

[SoyCapitanSoyCapitan]

There appears to be an issue with the GTX680 (and others??) in Photoshop with the Nvidia web drivers. Artefacts appear on an image when you use any kind of brush or clone tool. Using Apple's driver resolves the issue. This is worse than the Nvidia OpenCL bug that causes Photoshop to crash if you resize images.

I have the latest OS, software and driver.

Edit: seems I'm not the only one. This bug has been coming and going for a while.

https://forums.geforce.com/default/...mdash-screen-artifacts-w-stamp-tool/?offset=8

https://discussions.apple.com/thread/7437317?start=0&tstart=0

https://m.reddit.com/r/hackintosh/comments/45u6yg/photoshop_glitches_with_nvidia_web_drivers/

 

[nigelbb]

There appears to be an issue with the GTX680 (and others??) in Photoshop with the Nvidia web drivers. Artefacts appear on an image when you use any kind of brush or clone tool. Using Apple's driver resolves the issue. This is worse than the Nvidia OpenCL bug that causes Photoshop to crash if you resize images.

I have the latest OS, software and driver.

Edit: seems I'm not the only one. This bug has been coming and going for a while.

https://forums.geforce.com/default/...mdash-screen-artifacts-w-stamp-tool/?offset=8

https://discussions.apple.com/thread/7437317?start=0&tstart=0

https://m.reddit.com/r/hackintosh/comments/45u6yg/photoshop_glitches_with_nvidia_web_drivers/

As the GTX680 is natively supported in OS X I don't see any advantage in using the Nvidia web drivers & as you have pointed out there are disadvantages.

 

[SoyCapitanSoyCapitan]

As the GTX680 is natively supported in OS X I don't see any advantage in using the Nvidia web drivers & as you have pointed out there are disadvantages.

If you read the links the bug is also affecting newer GPUs not supported by Apple's drivers. Eek. They have no choice.

 

[jdryyz]

What program is showing the correct idle GPU temp? I suspect (and hope) that GPU-Z is accurate. Since HWMonitor is running in a 4,1 -> 5,1 Mac, it may be making incorrect assumptions. It thinks I have dual CPUs and eight RAM sockets. I turned off the unneeded sensors. HWMonitor is the best sensor monitor for the Mac I have come across, though. I have tried TG Pro recently but I couldn't even find a GPU temp sensor (perhaps due to being in trial mode?) Then there is iStat Menus which I am not sure monitors GPU temps.

 

[SoyCapitanSoyCapitan]

What program is showing the correct idle GPU temp? I suspect (and hope) that GPU-Z is accurate. Since HWMonitor is running in a 4,1 -> 5,1 Mac, it may be making incorrect assumptions. It thinks I have dual CPUs and eight RAM sockets. I turned off the unneeded sensors. HWMonitor is the best sensor monitor for the Mac I have come across, though. I have tried TG Pro recently but I couldn't even find a GPU temp sensor (perhaps due to being in trial mode?) Then there is iStat Menus which I am not sure monitors GPU temps.

None.

 

[h9826790]

That 85C means it's not working, therefore it shows you the default number 85.

If you really want to show your GPU temperature in OSX, you need to install the correct FakeSMC plugin. But I can never figure out how to have the GPU temperature and the native SMC key value (e.g. fan speed) display at the same time.

 

[jdryyz]

Neither, eh? Is this a result of the card being flashed or just something specific to the GTX 680?

None.

[doublepost=1460328694][/doublepost]I know a little bit about FakeSMC from my short time as a Hackintosher but did not install the plugin(s) in my real Mac due to the warnings. Ahh well. My fans aren't running much with the exception of the expansion bay. Seems to be a very cool system thus far and I have pushed it in a few ways already.

Then again, summer isn't here yet.

That 85C means it's not working, therefore it shows you the default number 85.

If you really want to show your GPU temperature in OSX, you need to install the correct FakeSMC plugin. But I can never figure out how to have the GPU temperature and the native SMC key value (e.g. fan speed) display at the same time.

 

[chain86]

I confirm

EVGA GeForce GTX 680 SuperClocked SIGNATURE == 02G-P4-2683-KR ==

Work fine.

HI . I have same card and right now I flashed, but I have problem with stuck on boot logo.. but sound to starting OS and skype are listening after few second. ? I plug only 6 pins cable .I have mac pro 4.1 and mac pro 3.1 I check bout but same problems on it. What can I do for resolve problem.

 

[Cymen]

I bought a 02G-P4-2687-KR and flashed it with the stock (Mac EVGA) bios and it works great on DVI however it won't display EFI on DisplayPort. I can boot up with both DVI attached and DisplayPort and switch over from DVI to DP. I want DP for 4k 60hz. It would be awesome get it working so it would just boot up EFI on DP.

Has anyone gotten 02G-P4-2687-KR to boot up on DisplayPort? This model has DisplayPort, HDMI and 2 x DVI.

 

[pastrychef]

Has anyone gotten 02G-P4-2687-KR to boot up on DisplayPort?

This firmware will not give boot screen on DisplayPort. This is normal.

 

[Cymen]

This firmware will not give boot screen on DisplayPort. This is normal.

Ah! Thank you. At least now I don't have to swap cards to get working EFI so I'll just live without EFI and plug in the DVI when I need it on rare occasions. But thanks again as that saves me the time of keeping looking for a solution .

 

[h9826790]

I bought a 02G-P4-2687-KR and flashed it with the stock (Mac EVGA) bios and it works great on DVI however it won't display EFI on DisplayPort. I can boot up with both DVI attached and DisplayPort and switch over from DVI to DP. I want DP for 4k 60hz. It would be awesome get it working so it would just boot up EFI on DP.

Has anyone gotten 02G-P4-2687-KR to boot up on DisplayPort? This model has DisplayPort, HDMI and 2 x DVI.

If you want boot screen on DP with 4K 60Hz. AFAIK, the only option is the Maxwell card from MVC.

 

[pdafan]

Just to add on that I have just flashed EVGA GTX 680 Superclocked Signature 02G-P4-2685-KR.
Boot screen ok.
Slot 1.
Fan speed I think runs a bit high at 1350rpm for normal use.

What should be the normal speed? Anyone?

Thanks.

 

[leon771]

Run CUDA-Z briefly and fans will ramp. Then close the app and fans will drop to 800rpm.

 

[pdafan]

Run CUDA-Z briefly and fans will ramp. Then close the app and fans will drop to 800rpm.

Thanks.
Hmm.. I ran DOTA 2 and it went down to 800rpm.

Is running CUDA-Z the workaround with no permanent cure?

 

[CapnDavey]

QUOTE="Horselover Fat, post: 22663894, member: 665509"]Fellow Mac and GTX enthusiasts,

I may be a little late to the party but recently I tried to flash a GTX 680 and it didn’t work. Maybe you can help me? Here’s what I did.

Downloaded the latest Version of nvflash for Windows: nvflash_5.265-win
Downloaded Kepler BIOS Tweaker, in case I want to establish the superclocked frequencies because my EVGA is a „superclocked“ one.
Downloaded the gtx680mac.rom

Booted from the Windows 10 bootcamp partition.
Opened a DOS prompt in the nvflash folder.
Started nvflash with the backup option and it worked! A backup.rom was created.
Then I started nvflash with the options -4 -5 -6 gtx680mac.rom and all that happened was that a new prompt window opened where all these — options for nvflash were displayed. I mean the screen where you press any key to continue or q to quit. (—check and so on). There was no message that the selected ROM file was the right or wrong one nor was there any other related text to what I have been trying to do.

I tried several things incl. 32 and 64 bit versions of nvflash. I checked my spelling several times. I am the admin in Windows 10. The card works fine, but I want it to be a mac card with bootscreen. You have any idea where I failed?


thanks[/QUOTE]

I've also just read that you won't see anything above 1.1 unless the system puts demands on the card. Hmm...

I will search for an older version of NVFlash. 5.134 seems like a good choice.



[doublepost=1459386967][/doublepost]Flash success!! What GPU-Z reports now makes more sense. It says 2.0 first but also says @ 1.1 meaning it is not working at 2.0 speeds at the moment.

Had a couple of weird boot delays but probably due to Windows Bootcamp control panel.

And I've been beating my head against the wall for 2 weeks same issue used the 5.134 flasher works great now put it in my newer 4.1

thanks for the info guys

 

[KaiserJay]

I just flashed an EVGA GeForce GTX 680 FTW 2048MB 02G-P4-3686-KR which hasn't been previously reported as flashable but looks identical to the other EVGA cards based the reference design except for the 6 pin & 8 pin power sockets. I used an 8 pin to 6 pin adapter. I have both DVI sockets working but won't be able to test the HDMI & DisplayPort interfaces until next week.

Made an account to also confirm that the EVGA GeForce GTX 680 FTW 2048MB 02G-P4-3686-KR is also flashable using the EVGA bios. Used NigelBB's instructions https://forums.macrumors.com/thread...cannot-install-windows.1946937/#post-22425173 and all is fine with my card.

So much nicer than the old ATI Radeon HD 4870 my poor machine was chugging along with...

 

[Kyle N]

I successfully did this last night, there were some problems though. I tried NVFLASH versions 5.353, 5.292, 5.190 and then finally when reading a link and seeing it had .....nvflash5.134.... in the links address (the link redirected to the newest version, 5.353), I decided to search for 5.134. Found it, used it, everything worked fine. When trying to find someone with my problem on the net, I found no one at all that had the same issues, which I was kind of surprised to see.

I am running a Mac Pro 4,1 flashed to 5,1 with a X5680 and bunch-o-ram. Installed a PC EVGA GTX 680 (known compatible model but don't have it off hand) as discussed here. A 100% fresh install of both OSX 10.9.5 and Windows 7 64 bit Pro. The problems I had were all in terminal. They included not backing up the former flash at all (and had not confirmation or denial in terminal), when attempting to flash it would give me a whole bunch of statements that say 'enter to continue or q to quit' or something close to. I would hit enter about 15 times and then it would leave the prompting but nothing happened. the 'nvflash -r' operation would hit and miss on it the versions that didn't flash. Didn't have problems with 'bricking' the gpu though.

But in the end, on my computer I had to use NVflash 5.134. Different versions were not working.

Hope it helps someone.

 

[ActionableMango]

But in the end, on my computer I had to use NVflash 5.134. Different versions were not working.

Hope it helps someone.

Too late to help you. But for others, a relatively decent step-by-step procedure including all of the correct files for flashing a 680 is linked in my signature.

 

[gonnok]

I know 680s are a bit old by now, but I wanna replace my 5770 (for bootscreen).
Anybody tried ASUS GTX 680 4GB DCUII? 2x6pin, 2xDVI, DP and HDMI, so I guess it should work...
Also, is the 4GB verison worth the extra price? I 've seen (old and PC) benchmarks the 2 and 4gb cards performing almost the same. The 4GB only performed significantly better at multiple screen setups - but I am only running a 1080p ultrawide.

 

[JMVB]

I know 680s are a bit old by now, but I wanna replace my 5770 (for bootscreen).
Anybody tried ASUS GTX 680 4GB DCUII? 2x6pin, 2xDVI, DP and HDMI, so I guess it should work...
Also, is the 4GB verison worth the extra price? I 've seen (old and PC) benchmarks the 2 and 4gb cards performing almost the same. The 4GB only performed significantly better at multiple screen setups - but I am only running a 1080p ultrawide.

https://forums.macrumors.com/thread...ens-full-clock-rates-pci-e-2-0-5gt-s.1603260/

 

[gonnok]

https://forums.macrumors.com/thread...ens-full-clock-rates-pci-e-2-0-5gt-s.1603260/

Well thanks, read trough the thread, but did not find my answers, thats why I tried to ask.

 

[JMVB]

I can asure, you didn't read well...

Clue: post 379 and 404