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EVGA announces a GTX 680 Mac Edition

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MacVidCards

Suspended
Nov 17, 2008
6,096
1,056
Hollywood, CA
First to the Pole, as usual

It's ALWAYS true.

Can you imagine there ever being an advantage to NOT having a copy of your original rom?

Nvflash -b my680.rom
 

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Rohirm

macrumors member
Aug 25, 2010
48
39
I got my GTX680 today from EVGA. When I run CUDA-Z it says "CUDA not found!", why is that? Is there any benefit for trying to enable it somehow, where does it affect?

5.1 Mac Pro, 10.8.3
 
simsaladimbamba

simsaladimbamba

Guest
Nov 28, 2010
22,670
31
located
Rohirm said:
I got my GTX680 today from EVGA. When I run CUDA-Z it says "CUDA not found!", why is that? Is there any benefit for trying to enable it somehow, where does it affect?

5.1 Mac Pro, 10.8.3
Click to expand...

Installed the latest CUDA drivers from Nvidia? That remedied that issue for me and my GTX670.
 
cal6n

cal6n

macrumors 68020
Jul 25, 2004
2,096
273
Gloucester, UK
Could someone post screenshots of the CUDA-Z window showing the "Core" and "Memory" sections with an EVGA GTX 680 fitted, please? I'm interested in comparing the specs with my GTX 670.

Ta!
 
Killerbob

Killerbob

macrumors 68000
Jan 25, 2008
1,908
654
I am about to take the leap and flash my EVGA GTX680 SC card with the Mac ROM. However, taking a look at the excellent manual from tomvos, and before I do I have a few questions:

1) It states I should make a "bootcd/floppy" folder in step 4, but it also mentions that I should copy the files into the "bootcd/CD" folder???

2) I only have an ATI5870 and my GTX680. Is it OK to run both with only one power cable in each?

3) What is a good way to get a backup of my original GTX680 ROM?

Thanks!
 
MyMac1976

MyMac1976

macrumors 6502a
Apr 14, 2013
511
1
Abulia said:
I just got off a plane and am very tired. Installed and did the dump. Works in OS X and Boot Camp (with boot screens) with no issues. I'll run some benchmarks tomorrow.

[Edit] Okay, I relented with one benchmark before bed. :)
Click to expand...

Interesting, my 570.
 

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GP-SE

macrumors 6502
Feb 27, 2013
344
52
Killerbob said:
I am about to take the leap and flash my EVGA GTX680 SC card with the Mac ROM. However, taking a look at the excellent manual from tomvos, and before I do I have a few questions:

1) It states I should make a "bootcd/floppy" folder in step 4, but it also mentions that I should copy the files into the "bootcd/CD" folder???

2) I only have an ATI5870 and my GTX680. Is it OK to run both with only one power cable in each?

3) What is a good way to get a backup of my original GTX680 ROM?

Thanks!
Click to expand...

2) the cards wont work with 1 power cable, each card requires 2 cables to power on
3) Use GPU-Z in windows to save the bios.
 
Killerbob

Killerbob

macrumors 68000
Jan 25, 2008
1,908
654
If I can't power up with both cards in the MP, how can I follow tomvos's directions?
 
P

Prince134

macrumors 6502
Aug 17, 2010
338
153
Killerbob said:
If I can't power up with both cards in the MP, how can I follow tomvos's directions?
Click to expand...

I used a dell T3500 h----sh mac pro, and successfully make my gtx 680 2gb flashed and put in my real mac pro at home. It's easier do it on pc. I did it with USB + free dos. Make a bootable usb drive, use the files provided in page 6 of this thread.

You will need both graphic cards working to be identified by nvflash. For example, I had gtx 285 and gtx 680 both present in my dell. So 4 6-pin cables are needed in my case.
 
G

GP-SE

macrumors 6502
Feb 27, 2013
344
52
Killerbob said:
If I can't power up with both cards in the MP, how can I follow tomvos's directions?
Click to expand...

If you use boot camp with windows follow this:

http://www.overclock.net/t/1280007/official-msi-gtx-680-lightning-owners-club

they have a guide on flashing the BIOS from windows (using a DOS prompt)
this is for a MSI card, but the procedure is the same, just replace the MSI stuff with the EVGA MAC BIOS.
This way you can just boot to windows with the EVGA card installed.


To flash the BIOS, download the latest version of nvflash

extract the nvflash files to C:\
save the BIOS file to C:\
open elevated cmd window (hit start button, type "cmd", right click cmd icon, run as administrator)
change directory to C:\ (type " cd C:\ " )
OPTIONAL: type " nvflash --protectoff " then hit enter (turns off any error msg that may result from software write protection)
BACKUP ORIGINAL BIOS: Type " nvflash -b backup.rom " and a copy of your bios will be saved to the nvflash directory
type " nvflash -4 -5 -6 680L_UnlockedBIOS.rom "
wait for it to finish
reboot
Click to expand...

replace "680L_UnlockedBIOS.rom" with the file name of the EVGA Mac Bios that was posted
 
G

ghislain

macrumors member
Apr 22, 2009
98
12
well done

Abulia said:
I just got off a plane and am very tired. Installed and did the dump. Works in OS X and Boot Camp (with boot screens) with no issues. I'll run some benchmarks tomorrow.

[Edit] Okay, I relented with one benchmark before bed. :)
Click to expand...

I have used your ROM to flash a MSI Gforce GTX680 2GB. I was a little scared because the size of the original ROM was 166 ko against 218 ko for your mac ROM. Fortunatly, it perfectly works, including boot screen and PCIe 2.0, as reported by GPU-Z! 3DMark Vantage report 31502 on graphic test, so everything looks excellent. Thanks again.....
 
G

ghislain

macrumors member
Apr 22, 2009
98
12
I forgot to mention

ghislain said:
I have used your ROM to flash a MSI Gforce GTX680 2GB. I was a little scared because the size of the original ROM was 166 ko against 218 ko for your mac ROM. Fortunatly, it perfectly works, including boot screen and PCIe 2.0, as reported by GPU-Z! 3DMark Vantage report 31502 on graphic test, so everything looks excellent. Thanks again.....
Click to expand...

Link speed of the flashed MSI Gforce GTX680 2GB is 5.0 GT/s. See another topic by Fouel...
 
Killerbob

Killerbob

macrumors 68000
Jan 25, 2008
1,908
654
Given that I'll flash the slightly overclocked EGVA GTX680 SC, I should be safe to overclock it again after flashing to the Mac ROM. In Windows there are plenty of tools from NVIDIA, but what about in OSX?
 
P

patlee88

macrumors member
Jul 15, 2010
60
1
If GTX680 and another display card (i.e 5870) need totally 4 power connector, so how does it work to power on macpro, and do the flash in bootcamp????:confused:
 
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