David Pirinelli
Forum Replies Created
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As a double downer, the 3,1 Mac Pros run non-flashed cards at PCIE 1.0 speeds.
So it runs at half speed on the bus compared to a flashed card.
You may not notice due to CPU issue, but always best to have things moving as fast as they can.
You can flash it yourself if you have a PC, or a friend with one.
I have sold a couple 580s to people with 3,1s who were perturbed that even with a 580 Resolve performance didn’t leap forward. BMD has a lower quality setting just for these machines.
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https://www.barefeats.com/aecs6.html
He just added out GTX580 Classified 3GB and GTX570 2.5 GB.
The GTX570 is really the card to have in OSX right now. The GTX580 Classified is FASTEST Mac card ever, but it requires 2 @ 8 Pin and a 6 pin and once all of this power connected, it is hard to close case. Perfect for a chassis.
With GTX570, no added power needed, the case closes up and card shows full boot screens and runs at PCIE 2.0 full speed of 5.0 GT/s. (unflashed cards sourced from Newegg et al, don’t do either of these things)
Note there is a simple math correlation. The Quadro 4000 costs nearly 3 times as much money, and it takes nearly 3 times as long to render.
Thanks again to Nvidia for writing solid OSX drivers.
GTX570 2.5 is the king.
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So we have GTX680 drivers for OSX.
They are in 10.8 DP4 and we even have a way to move them from MBP 2012 install into Mac Pro and have some basic 680 functionality in 10.7.4.
I am in talks with a Hollywood area color facility who will be testing 680 against the Grand Poobah of 580s, the EVGA Classified 3Gb model.
Will keep you posted on results.
I would expect 680 drivers to mature in OSX in 60 days or so.
BTW, the CUDA-Z “Single Precision Float” number for 680 hovers between 1700 and 2000.
The 580 classified does same range but doesn’t break 2000 usually.
The OpenGl View numbers in 10.7.4 for 680 are below 580 by quite a bit.
I don’t think it is running full speed in OSX yet.
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a few minutes spent with Google will get your card working, just no boot screens
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If you use the newer Nvidia “Magic” drivers, the Quadro 4000 will work in the 2,1.
It will run at PCIE 1.0 Bus Speed of 2.5GT/s, just like unlashed cards in later Mac pros.
You will not be able to use it for boot screens as it will not show anything until it reaches desktop.
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Glad this worked out for you.
And glad we could get the cards to you so quickly. I even enjoyed the drive on Forest Lawn Drive, amazing clear at 5 PM, was back in Hollywood in 20 minutes.
I forgot to mention to you that I added a backplate to one of the 580s.
And hopefully you pulled the clear protective plastic off the fan shrouds.
I went to Newegg yesterday and was surprised to discover that new 580s with 3GB are no longer easily gotten. Quite likely I will only be able to source used ones in near future.
They are as about as “Future Proof” as a card can be. The 680 has lots of nifty new stuff, but it’s GPU performance has been clipped to make Quadros seem like better deals. So 580 is not likely to be eclipsed by consumer level cards for some time now, at least for CUDA/OpenCl.
Enjoy those powerhouses !!!
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that works or
directly at dpart2
at mac dot com
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There is one and only 1 MPE supported GPU for Mac Pro 1,1 and 2,1.
It is a very fast version of 8800GT with 1Gb of RAM.
I developed it with another vendor and we both sell it on Ebay.
It is not as fast as a GTX285, but it does enable MPE in CS5 and later.
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It’s $100.
If it is a card I have done before it goes rather quickly.
If it isn’t, it might take me a day extra to write a custom firmware.
The 10.7.4 update drivers taught me something and I am now offering cards that do NOT need AGPM removed. All previous cards required this, but I have gained a better insight into how 10.8 works and have included this in roms starting today.
If you need the power cables for Mac Pro I charge $10/ea for them. If you want the DP to MDP adapter it is $15. (let’s you run Apple MDP 24″ and 27″, crucial for Premiere)
Since the card has to be disassembled for the EEPROM chip replacement, if it is old & dirty it gets cleaned, etc. Thermal pastes refreshed before reassembly. Card is then tested in a 4.1/5,1
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Colin,
MacVidCards would be interested in sending you a 1GB Dual DVI GT120 to see if that fixes the problem.
If it does, we would trade you even for the 512 Mb Mac one.
MDP is a complicated thing, if your displays both receive DVI input, perhaps it would solve issue.
dp