Hey, tell me, which 450W aux. power supply for the 2x 8-pin connectors did you get?Thanks for this! I've got a GTX680 4GB Classified on the way, and I already have the 450W aux. power supply for the 2x 8-pin connectors it needs. I've read your thread on fitting the aux power supply and it's the neatest approach I've seen --- I'm gonna copy it
It might take me a little while to get it all done, but I'll report back how it works out!
Cheers!
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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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Just so you know, you dont need to swap the PSU.
The Mac BOOTROM has lower clockspeed and runs on less power then the original ROM.
You can also alter the clockspeed for the card to any speeds, and it will run with no problem on the Mac Pro within the specific power envelope of the Mac ROM.
I have done this on several overklocked cards, i just adjust in the rom editing software. Its very very easy, you open the original rom and read the boost clock and clock numbers, then just transfer the same numbers to the ROM you like.
And another thing you have to know, when you use the Mac 4Gb ROM for bootscreen. The card will automatically stay inside mac allowed specifications, because this is a Mac ROM, not a PC ROM.
Just to have this said.
Thanks
//GF
The Mac BOOTROM has lower clockspeed and runs on less power then the original ROM.
You can also alter the clockspeed for the card to any speeds, and it will run with no problem on the Mac Pro within the specific power envelope of the Mac ROM.
I have done this on several overklocked cards, i just adjust in the rom editing software. Its very very easy, you open the original rom and read the boost clock and clock numbers, then just transfer the same numbers to the ROM you like.
And another thing you have to know, when you use the Mac 4Gb ROM for bootscreen. The card will automatically stay inside mac allowed specifications, because this is a Mac ROM, not a PC ROM.
Just to have this said.
Thanks
//GF
Looking for advice on flashing a GTX670 4GB. Looking for Mac Pro 3,1 EFI compatibility. Card we have is a 04g-p4-2673-kr.
670 card is not flashable with free floating roms as far as i know it.
680 is best option avalible, if you dont wanna chase down a rom that might originate from MVC.
//GF
680 is best option avalible, if you dont wanna chase down a rom that might originate from MVC.
//GF
Is the GTX680 4GB Classified flashable? I know the GTX680 is, but can we use the same ROM image on the Classified?
It worked fine for me with 4gb classified.
Remember to back up original rom first!
No peoblem to revert back!
//gf
Remember to back up original rom first!
No peoblem to revert back!
//gf
What a great thread, im here in Brazil in 2021 putting my old Mac Pro 3,1 to run, so, I'm very confused about what energy connection I have to do from my logic board to the card, and if is a better choice buy a external power supply? Im can't buy a new power supply right now, what is the best power cables choice for run the GTX 680 4GB Classified? Thanks at all...
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Are you talking about a power connection for the video card? If so, the solution is simple. By the way, what pin is the power socket of your video card?
I don't know if you already got your answer for this by the time I'm seeing your message now, but the answer is: no you don't need an external power supply. The Mac Pro's 980W built in PSU is plenty good for any single GPU. You will need two power cables to connect the GPU's power connectors to the Mac Pro's PCI power supply lines, which are headers on the motherboard. That is all.
^^^^For older GPUs yes, for some new ones not so much.
Even some late model GPUs with more than six pins per side.
Lou
Even some late model GPUs with more than six pins per side.
Lou
An external power supply is not necessary, but the classified draws a lot of power.
IMO the best way is the Pixlas Mod:
Pixlas 4.1 Mac Pro mod
I'm creating a thread for my 4.1-->5.1 mod to keep everything in one place. I will document my upgrade to X5690, PCIe SSD (Apple SSUBX) and PSU mod to allow for two modern gfx cards using only the internal PSU. I have gotten my Mac Pro now (2x 2.26GHz) 4.1 from 2009. It had one Nvidia 120GT...
forums.macrumors.com
Mac Pro Pixlas Mod - The House of Moth
Modify your Mac Pro power supply to relieve the board and feed powerhungry GPU's
thehouseofmoth.com
If that's not an option, alternatively you could connect 2 mini 6-pin to 8-pin cables to a Evga Powerlink and plug the Powerlink into the GTX680 .
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Come on guys,
A lot of words but no helpful information.
I'm convinced the person who asked knows how to connect a cable.
Is there a way to flash a GTX680 in a Mac without using BootCamp? I flashed a GTX680 about five years ago, and I thought I had done it on a PC working from the command line.
I've searched, but to no avail. I'm wondering if I was thinking of flashing an ATI card using Python?
Thanks!
MacDann
I've searched, but to no avail. I'm wondering if I was thinking of flashing an ATI card using Python?
Thanks!
MacDann
Of course you can do it in a Mac without Bootcamp. Any Windows can do, not necessary Bootcamp. If you don't want to use Windows, using Linux LiveUSB / DOS etc would be easier. If you want to flash the card in macOS, then you have to first develop the tool to do so.
In my own experience, simply use Linux LiveUSB is the easiest, and most reliable way to flash graphic card on cMP.
I suspect this might have been how I did the last one. However, is there a Linux distro of the NVIDIA flash utility? I was thinking I might have done it in FreeDOS.
Thanks!
MacDann
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Great! Thanks!
I've already created a Linux Live USB and will be firing everything up on a spare 5,1. More as I know it.
MacDann
I've already created a Linux Live USB and will be firing everything up on a spare 5,1. More as I know it.
MacDann
Hi Dr Stealth, Ive been reading this thread hoping it was going to tell me how to flash a PC GTX680 for my cMP, but it mostly seems to be about overclocking, or have I missed something?? But I hope to install opencore, so do I need to do it. It might be useful if I do in before opencore so I get a boot screen, or will opencore provide the boot screen??