Well that worked! Once I got the 6->8 pin adapters I can now boot in to OS X able to see both the white boot screens and the OS just fine over HDMI, will be switching to mini display port as soon as my adapter arrives to run an older Apple Cinema display. Note that the output from the DVI port is garbled for some reason as soon as it hits the OS.
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GTX680 4GB - ROM Image - Full Boot Screens, Full Clock Rates & PCI-E 2.0 - 5GT/s
- Thread starter Dr. Stealth
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Well that worked! Once I got the 6->8 pin adapters I can now boot in to OS X able to see both the white boot screens and the OS just fine over HDMI, will be switching to mini display port as soon as my adapter arrives to run an older Apple Cinema display. Note that the output from the DVI port is garbled for some reason as soon as it hits the OS.
Hi,
I have a similar issue with a 680 GTX classified card. The flash works ok in a windows pc, but when i put it in my macpro 3.1 and boot i see the loading bar and a login. Everything works fine........
But i cannot seem to boot to a different disk or usb stick when i boot holding the option key.
What is going wrong? /amd i doing wrong ?
Help apreciated!
Thanx!
Poekel
I have a similar issue with a 680 GTX classified card. The flash works ok in a windows pc, but when i put it in my macpro 3.1 and boot i see the loading bar and a login. Everything works fine........
But i cannot seem to boot to a different disk or usb stick when i boot holding the option key.
What is going wrong? /amd i doing wrong ?
Help apreciated!
Thanx!
Poekel
I'm going to take a stab at the issue having nothing to do with your graphics card but I'm guessing you are using a wireless Bluetooth keyboard? If so, the keyboard won't initialize until the startup chime so if you are holding the key combo on power on, it won't work. I press the combo once the chime is almost done.
Well I flashed the 4gb gtx680 "classified" card with the rom file at the start of this thread (after backing up of course) and I get the boot screen on the lower dvi port.
EXCEPT
the card no longer works properly... the second dvi port image is often scrambled and the fans run louder in mac and pc. so i flashed it back..
EXCEPT
the card no longer works properly... the second dvi port image is often scrambled and the fans run louder in mac and pc. so i flashed it back..
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The ROM file at the start of this thread is old and known to have problems with the upper DVI port. You should use the ROM file that is linked to in my instructions. @Fl0r!an found and fixed the issue in that ROM.
As for power, the Classified card is known to require all 8-pins. In fact there have been reports of certain types of 6-to-8 pin adapters not working because there are a couple of different ways to wire those. IIRC, the ones that work are single 6-pin to single 8-pin, where the extra 2 pins on the 8-pin side are jumpered to ground. The ones that don't work are dual 6-pin to single 8-pin where user leaves one of the 6-pin connectors unconnected; in this case the extra 2 pins on the 8-pin side are not presenting ground like the card wants.
Some cards work fine with just 6-pins connected, so no adapter is needed. For example my FTW edition card which I tested with Furmark even. It's like those cars with 4 exhaust tips but 2 of them are fake and the other 2 are for show. But there is no list of which cards work like this and which do not, so the safe advice is always populate all the pins and always connect all the connectors.
As for power, the Classified card is known to require all 8-pins. In fact there have been reports of certain types of 6-to-8 pin adapters not working because there are a couple of different ways to wire those. IIRC, the ones that work are single 6-pin to single 8-pin, where the extra 2 pins on the 8-pin side are jumpered to ground. The ones that don't work are dual 6-pin to single 8-pin where user leaves one of the 6-pin connectors unconnected; in this case the extra 2 pins on the 8-pin side are not presenting ground like the card wants.
Some cards work fine with just 6-pins connected, so no adapter is needed. For example my FTW edition card which I tested with Furmark even. It's like those cars with 4 exhaust tips but 2 of them are fake and the other 2 are for show. But there is no list of which cards work like this and which do not, so the safe advice is always populate all the pins and always connect all the connectors.
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Hi,
I flashed the 680 GTX classified again with the rom from @Fl0r!an. It does not make any diffence.
If i hold the option key just after the chime, it just starts up normal (no extra/different disk shown)
There is a little switch on the card. Does the swith has anything to do with this? Or not at all ?
I just use nvflash -6 <florian-rom file>
Please help .......
I flashed the 680 GTX classified again with the rom from @Fl0r!an. It does not make any diffence.
If i hold the option key just after the chime, it just starts up normal (no extra/different disk shown)
There is a little switch on the card. Does the swith has anything to do with this? Or not at all ?
I just use nvflash -6 <florian-rom file>
Please help .......
You need to do more than just "-6". See the step-by-step procedure linked to in my signature.
Hi,
I have put the GTX 680 classified aside.....
I have found a gtx680-dc2-2gd5-v2 which i would like to flash. I tried it with a a 2GB rom i found , but i still dont see a bootscreen..
Its driving me nuts......
What am i doing wrong......
Am i using the wrong rom ? does anybody have the correct rom for me ?
Help highly appreciated!
Poekel
I have put the GTX 680 classified aside.....
I have found a gtx680-dc2-2gd5-v2 which i would like to flash. I tried it with a a 2GB rom i found , but i still dont see a bootscreen..
Its driving me nuts......
What am i doing wrong......
Am i using the wrong rom ? does anybody have the correct rom for me ?
Help highly appreciated!
Poekel
If your eVGA Classified is the 4GB model, you have to use the 4GB version of the ROM. Read here:
Step-by-Step Instructions for Flashing GTX680
My Classified 4GB works fine with the 4GB ROM.
Asus cards are really hit and miss, I don't have any working for this personality.
Extensions .bin and .rom here are the same binary format and won't matter, just rename it.
It's on the instructions and I explained that won't matter since it's the same binary format, just rename it.
Hi,
I saw that it was in the instructions. I must have missed it.
The problem:
I have 2 macpro's 3.1 and 2 gtx680-dc2-2gd5-v2. I flashed both. (everything ok)
In the first macpro3.1 everything works ok, and i have bootscreens on all the ports (dvi,hdmi)
On the second macpro (32GB memory) it does not work. I tried everything
power on - wait for the chime - hold down the option key
power on - DONT wait for the chime - press the option key direct
it all does not matter.......
Does somebody have an idea ?
Thanx!
I saw that it was in the instructions. I must have missed it.
The problem:
I have 2 macpro's 3.1 and 2 gtx680-dc2-2gd5-v2. I flashed both. (everything ok)
In the first macpro3.1 everything works ok, and i have bootscreens on all the ports (dvi,hdmi)
On the second macpro (32GB memory) it does not work. I tried everything
power on - wait for the chime - hold down the option key
power on - DONT wait for the chime - press the option key direct
it all does not matter.......
Does somebody have an idea ?
Thanx!
Did you tried to put the GTX 680 that work on 3,1 to 5,1 just to make sure the GTX 680 you're using in 5,1 is not the culprit? (Or put the GTX 680 that didn't work in 5,1 into 3,1 to check).
Hi,
I somehow solved the mistery.........
On the second macpro 3.1 which did not work there is a problem with my wireless keyboard i think (Bluetooth)
On the first macpro 3.1 everything works when i hit the option key when i hear the chime, but the second macpro 3.1 startsup ok without the bootscreen...
So i think its a bluetooth problem somehow
The i put the gtx680 4GB in and used an ordinary wired keyboard. When i use the alt key the classified gtx680 showns me bootscreens............
I somehow solved the mistery.........
On the second macpro 3.1 which did not work there is a problem with my wireless keyboard i think (Bluetooth)
On the first macpro 3.1 everything works when i hit the option key when i hear the chime, but the second macpro 3.1 startsup ok without the bootscreen...
So i think its a bluetooth problem somehow
The i put the gtx680 4GB in and used an ordinary wired keyboard. When i use the alt key the classified gtx680 showns me bootscreens............
Does anybody have an actual ROM for the GTX 680? I've problems with my dual-boot Windows 10 installation and the Windows driver - after installation I've a black screen starting with the login screen....
