Confirmed and Possible Flashable GTX 680 Models

[Ch0pstix]

Hi guys! Looking at a KFA2 GTX680 (triple fans), I was wondering if anyone has flashed one of those for a mac pro 4,1?
It seems to be a little different from the other ones, but I don't know if it makes any difference?

http://www.techpowerup.com/reviews/KFA2/GTX_680_Limited_OC/

 

[Rankel]

Hi guys! Looking at a KFA2 GTX680 (triple fans), I was wondering if anyone has flashed one of those for a mac pro 4,1?
It seems to be a little different from the other ones, but I don't know if it makes any difference?

http://www.techpowerup.com/reviews/KFA2/GTX_680_Limited_OC/

That looks really interesting. The real problem is the port configuration. Without having the card to test, it is anyones guess as to which of the ports (if any) will function. If you are of the persuasion to give it a go, you should try it and tell us what happens. If you are looking for an easy to flash 680, I would suggest you stick with a model that uses the standard 2x DVI, HDMI, Displayport ports.

 

[avkdm]

Hi guys! Looking at a KFA2 GTX680 (triple fans), I was wondering if anyone has flashed one of those for a mac pro 4,1?
It seems to be a little different from the other ones, but I don't know if it makes any difference?

http://www.techpowerup.com/reviews/KFA2/GTX_680_Limited_OC/

Looks like a different board from the reference design, I wouldn't risk it personally.

 

[weaverra]

Galaxy GeForce GTX680 2GB 68NPH6DV5ZGX confirmed working!

I have the Galaxy GTX 670 2GB Video Card 67NPH6DV5ZVX. I wonder if this ROM could be modified to work with mine.

 

[Rankel]

I have the Galaxy GTX 670 2GB Video Card 67NPH6DV5ZVX. I wonder if this ROM could be modified to work with mine.

See post #243, one page back in this thread.

 

[Nickademus]

Hi,
I have a Mac Pro 3.1 early 2008 with OS X 10.8.5
I want to buy a Gigabyte Geforce GTX 680 OC 2 Gb ..for 180 euros...
It need 1x6 and 1x8 for power as I checked ... What is the safest way to connect it with my MAC?
I think some saying that it will work with mini pcie 2x6 cables, but this is working with all 680 models?
or just use 1x6 and 1x8 cables? what about the watt issue?

Thank you and sorry about my english

 

[bokkow]

Seriously? Exactly the same questions as the ones you asked in the other topic? The topic from where I advised you to read this topic? After giving answers that you would have had if you read either one?

Again: 2 x 6-pin will work perfectly fine with any GTX 680

 

[Nickademus]

Sorry...and thank you for you time... was really clear ..now

 

[nigelbb]

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.

 

[macraq]

Just a quick Confirmation:

Successfully flashed a Gainward GTX 680 4 GByte on a Mac Pro 4,1 2x26 GHz QuadCore (OSX 10.11.2)
with EFI Support (Boot Screen) and CUDA Support in Premiere and After Effects.

Steps as found here in several Threads:

1. Installed Bootcamp with WIN7 (64bit) on Mac Pro
2. Installed several tools like NVidiaInspector, Tweaker etc.
3. Saved Backup of Original Gainward ROM gpu0.rom in separate (!) Folder
4. Flashed Card using nvflash64.exe and EVGA GTX 680 ROM Image (4GByte Version!!!)
found here: https://forums.macrumors.com/thread...ens-full-clock-rates-pci-e-2-0-5gt-s.1603260/

Issue1 (solved)
Card came with on splitted (2 x 6) Power cable connected to the 8 Pin Plug on the card.
Refused to work with simply ading 2 x (6 (big) to 6 (small)) Adpater Cables on Mac Board.
Worked after using one of those Adapter Cables on the second 6-pin Plug on the board:
GTX 680 -> 6 Pin Plug -> Adapter Cable -> 6 Pin Mini-Plug on Mac Board
GTX 680 -> 8 Pin Plug -> Spilt Cable -> 6 Pin Mini-Plug on Mac Board (2nds splitted left unconnected)

Issue2 (solved)
Both DVI Connectors just worked for Windows 7
On OSX the second screen stayed black until I conected it to the HDMI Port.
Now two Screen Support under Mac OSX, I supposed the Displayport Connector will work too.
Could not test this becaus no cable available here.

Thanks for all those helpful infos on this board!

 

[m4v3r1ck]

Just a quick Confirmation:

Successfully flashed a Gainward GTX 680 4 GByte on a Mac Pro 4,1 2x26 GHz QuadCore (OSX 10.11.2)
with EFI Support (Boot Screen) and CUDA Support in Premiere and After Effects.

Steps as found here in several Threads:

1. Installed Bootcamp with WIN7 (64bit) on Mac Pro
2. Installed several tools like NVidiaInspector, Tweaker etc.
3. Saved Backup of Original Gainward ROM gpu0.rom in separate (!) Folder
4. Flashed Card using nvflash64.exe and EVGA GTX 680 ROM Image (4GByte Version!!!)
found here: https://forums.macrumors.com/thread...ens-full-clock-rates-pci-e-2-0-5gt-s.1603260/

Issue1 (solved)
Card came with on splitted (2 x 6) Power cable connected to the 8 Pin Plug on the card.
Refused to work with simply ading 2 x (6 (big) to 6 (small)) Adpater Cables on Mac Board.
Worked after using one of those Adapter Cables on the second 6-pin Plug on the board:
GTX 680 -> 6 Pin Plug -> Adapter Cable -> 6 Pin Mini-Plug on Mac Board
GTX 680 -> 8 Pin Plug -> Spilt Cable -> 6 Pin Mini-Plug on Mac Board (2nds splitted left unconnected)

Issue2 (solved)
Both DVI Connectors just worked for Windows 7
On OSX the second screen stayed black until I conected it to the HDMI Port.
Now two Screen Support under Mac OSX, I supposed the Displayport Connector will work too.
Could not test this becaus no cable available here.

Thanks for all those helpful infos on this board!

Thanks for your comprehensive feedback on "Successfully flashed a Gainward GTX 680 4 GByte"!

Is it by any change the Gainward GeForce® GTX 680 Phantom 4GB? Looking at this card atm, so perhaps you know IF this one is flash-able too, linking all output ports in OS X 10.10 / 10.11 and Windows 8.1/10?

TIA!

Cheers

 

[nigelbb]

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.

Just to confirm that all monitor interfaces function at least three simultaneously (I only have three monitors to test with) in all possible combinations (DVI+DVI+HDMI, DVI+DP+HDMI, DVI+DVI+DP)

 

[Horselover Fat]

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

 

[nigelbb]

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

Try another (older) version of nvflash. I have flashed a couple of GTX680s without problem using the instructions & downloading the files linked from here (except that like you I used -4 -5 -6 flags) http://forum.vrayforc4d.com/index.php?threads/13946/

BTW I see that you already renamed the file. Thius caught me out initially as I downloaded gtx680mac.bin & then couldn't understand why it wouldn't flash then discovered it needs to be renamed to gtx680mac.rom

 

[Horselover Fat]

Try another (older) version of nvflash. I have flashed a couple of GTX680s without problem using the instructions & downloading the files linked from here (except that like you I used -4 -5 -6 flags) http://forum.vrayforc4d.com/index.php?threads/13946/

BTW I see that you already renamed the file. Thius caught me out initially as I downloaded gtx680mac.bin & then couldn't understand why it wouldn't flash then discovered it needs to be renamed to gtx680mac.rom

Success! I downloaded the older nvflash and the rom from the link you gave. I guess the older version of nvflash helped, because the rom I already had was also exactly the demanded size of 218.112 bytes. Anyway, thank you!

 

[macraq]

Thanks for your comprehensive feedback on "Successfully flashed a Gainward GTX 680 4 GByte"!

Is it by any change the Gainward GeForce® GTX 680 Phantom 4GB? Looking at this card atm, so perhaps you know IF this one is flash-able too, linking all output ports in OS X 10.10 / 10.11 and Windows 8.1/10?

TIA!

Cheers

Yes , i forgot to mention that this is indeed the "Phantom". I just can tell that it worked with Max OS 10.11.2 /10.11.3 and Windows 7....

 

[jdryyz]

Anyone come across an EVGA GTX 680 with this part number:

02G-P4-2680-B1

I have not seen "B1" mentioned anywhere before as confirmed flashable.

 

[Horselover Fat]

Success! I downloaded the older nvflash and the rom from the link you gave. I guess the older version of nvflash helped, because the rom I already had was also exactly the demanded size of 218.112 bytes. Anyway, thank you!

The only thing I noticed: the fan of my previous card (ATI 4870) showed around 890 rpm, whereas Macs Fan Control reports 1200-1300 for the new EVGA GTX 680. Both were measured in a rather idle state, no video display, no 3D work/gaming. Is this jump normal? Is it safe to reduce the rpm by force? The noise level seems ok but why not have it a bit quieter...

 

[richgoga]

To those who have successfully flashed their 680's, do you have audio over HDMI?

Activated by disabling SIP & using the kext found in:
https://forums.macrumors.com/threads/guide-hdmi-audio.1499797/

Thanks

 

[nigelbb]

The only thing I noticed: the fan of my previous card (ATI 4870) showed around 890 rpm, whereas Macs Fan Control reports 1200-1300 for the new EVGA GTX 680. Both were measured in a rather idle state, no video display, no 3D work/gaming. Is this jump normal? Is it safe to reduce the rpm by force? The noise level seems ok but why not have it a bit quieter...

That is probably just the design of the GTX680. The 4870 is a completely different design from a different manufacturer. It may be that the 4870 needs less cooling or that the fan on the GTX680 is less efficient & needs to run faster to cool the card. It is as it is.

 

[ActionableMango]

Anyone come across an EVGA GTX 680 with this part number:

02G-P4-2680-B1

I have not seen "B1" mentioned anywhere before as confirmed flashable.

I can't promise you anything, but in lieu of an actual verification, this looks like a typical EVGA card and it should flash fine. The only difference I can find between the -B1 and the more common -KR is the length of warranty, so it's probably the same hardware and just a different SKU for computer OEMs or something.

 

[jdryyz]

Yeah, the warranty difference is all I could come up with also. Makes you wonder why two cards that look identical in every way would have different warranties. Perhaps the one year warranty card is made from slightly inferior components??

I can't promise you anything, but in lieu of an actual verification, this looks like a typical EVGA card and it should flash fine. The only difference I can find between the -B1 and the more common -KR is the length of warranty, so it's probably the same hardware and just a different SKU for computer OEMs or something.

 

[ActionableMango]

Yeah, the warranty difference is all I could come up with also. Makes you wonder why two cards that look identical in every way would have different warranties. Perhaps the one year warranty card is made from slightly inferior components??

I don't know for certain, but I doubt it is different at all.

It reminds me of the Toshiba DVD player I bought at Costco once. The typical model number sold everywhere else was BLAHBLAH-HDA for example and had long warranty, but no HDMI cable. The model made just for Costco was exactly the same, but called BLAHBLAH-HDX, had a short warranty, and included an HDMI cable. The unit itself was exactly the same in every way and it took the same firmware updates for bug fixes. Costco wanted to sell it at a much lower price and Toshiba conceded by lowering their support costs through the reduced warranty.

Toshiba keeps their other resellers like Best Buy happy because the different model name doesn't violate MAP (minimum advertised price) agreements, it protects the retailers from taking a hit through their competitor price matching policies (different model, they don't have to match), and anyone researching prices on the BLAHBLAH-HDA won't see it at Costco at all.

 

[jdryyz]

Alright, I was finally able to score an EVGA GTX 680 2GB card. Part# is 02G-P4-2680-KR. I am running it on the Bootcamp side right now and the only thing that looks odd is the reported PCI-e bus (1.1 instead of 2.0). Speed is x16 so at least that is correct. Shouldn't it be PCI-e 2.0 on a Mac Pro 2009 (hacked to 5,1)? I do have it in slot 1.

Looks like my FreeDOS USB stick is not bootable on this Mac (I know, not firmware supported) so I will be flashing under Windows 7 64bit. Feels more risky but I know many have had success this way.

Okay to use the latest NVFlash tool for Windows though?

 

[ActionableMango]

Alright, I was finally able to score an EVGA GTX 680 2GB card. Part# is 02G-P4-2680-KR. I am running it on the Bootcamp side right now and the only thing that looks odd is the reported PCI-e bus (1.1 instead of 2.0). Speed is x16 so at least that is correct. Shouldn't it be PCI-e 2.0 on a Mac Pro 2009 (hacked to 5,1)? I do have it in slot 1.

Looks like my FreeDOS USB stick is not bootable on this Mac (I know, not firmware supported) so I will be flashing under Windows 7 64bit. Feels more risky but I know many have had success this way.

Okay to use the latest NVFlash tool for Windows though?

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.