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texem

macrumors member
Aug 18, 2010
68
7
Hi,

yes , thanks for that info. It seems that the MP behaves different .
PCI-e is only at 1000rpm then but does not spin down to 800.

Disadvantage is losing PCIe slot 3.
 

BConvery

macrumors regular
Feb 28, 2009
160
1
I've done a search through all the threads (maybe I missed it) and I didn't want to start a new thread but if I put a PC GTX 680 card in my MP 3,1 and don't flash it, will I get GTs 5.0 speed or does it need the flash for that?

Not to mention the Mac cards are out of stock everywhere....

TIA
 
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Killerbob

macrumors 68000
Jan 25, 2008
1,908
654
If you put a PC GTX680 card in a MP, and run 10.8.3, with the reference drivers from NVIDIA, you only get a Link Speed of 2.5 GT/s in OSX and Bootcamp. However, if you flash your card, at least if it is an EVGA card, you will then have Link Speed of 5.0 GT/s in both configurations.

At least that is how I have experienced it...
 

BConvery

macrumors regular
Feb 28, 2009
160
1
Great, just what I needed to know. Looks like I'll be flashing it, your post will help a lot.
 

fouel

macrumors member
May 14, 2008
68
1
If you put a PC GTX680 card in a MP, and run 10.8.3, with the reference drivers from NVIDIA, you only get a Link Speed of 2.5 GT/s in OSX and Bootcamp. However, if you flash your card, at least if it is an EVGA card, you will then have Link Speed of 5.0 GT/s in both configurations.

At least that is how I have experienced it...

I am afraid that you are wrong.
Using a PC GTX 680 in a MP ,in fact it runs in 5.0 GT/s.
Sometimes, even it shows 2.5GT/s, it runs in 5.0 GT/s.
Check the speed via CUDA-Z.
The left picture is a flashed card, but not mod to 5.0GT/s so in fact it runs 2.5 GT/s.
The right picture is a PC GTX 680. Won't see the PCI info, but it runs 5.0 GT/s.

So, you don't have to flash a PC card.
 

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cal6n

macrumors 68020
Jul 25, 2004
2,096
273
Gloucester, UK
I beg to differ, fouel. These are screensots from a PNY GTX 680 (PNY VCGGTX680XPB), flashed with the EVGA ROM, but otherwise unaltered.
 

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fouel

macrumors member
May 14, 2008
68
1
I beg to differ, fouel. These are screensots from a PNY GTX 680 (PNY VCGGTX680XPB), flashed with the EVGA ROM, but otherwise unaltered.
Hi cal6n,
Thanks for updates.
What I posted is to let people to know that:
If you have PC GTX 670 2GB or 4GB and GTX 680 4GB, it doesn't require to flash to get 5.0 GT/s. Just plug and play and get link speed 5.0 GT/s.
(It needs to check that in CUDA-Z).Thanks nvidia for rewrite drivers.

Of course, it won't get boot screen and shows up 5.0GT/s in PCI cards.

If you have GTX 680 2GB reference card, just flash it with Mac rom and get full function for Mac.
 

MacVidCards

Suspended
Nov 17, 2008
6,096
1,056
Hollywood, CA
Kepler PCIE speeds in Mac Pors

There is some misunderstanding above so let me clarify things.

Currently in a 3,1 Mac Pro the built in drivers only enable 2.5 GT/s in OSX 10.8.3 with unflashed cards..

With a 4,1 or 5,1 Mac Pro, the 5.0 speed is working with unflashed cards in OSX.

Best way to check in OSX is lspci. Google it.

With any of the above machines, unflashed cards will run at 2.5 GT/s in Windows via Bootcamp.

Once you flash a 680 2GB it will run at 5.0 speed in either OS in the above machines.

The easily written roms for 670 and 680 4GB will keep cards at 2.5. There are a couple tricks needed to make them work at 5.0. The work to write these roms has been slowed by the fact I got some actual film jobs and will be working on the shooting end of them, not in post. So I'm busy. In fact I will be on tech scout in Encino in an hour. Worst part of film biz is waking up early.

Enjoy your cards.
 

xelanaiznac

macrumors member
May 13, 2013
62
5
italy
sorry but i need more explanation: are you saying that we would be able to flash even a gtx 670 2gb in the near future with a efi bios?
 

pastrychef

macrumors 601
Sep 15, 2006
4,754
1,453
New York City, NY
@ MacVidCards:

When you have the firmware worked out for other Nvidia 6-series cards, would you be willing to flash my MSI GTX 670 card? I got it prior to there being an official GTX 680 Mac Edition and would love to have the boot screen again. I'd be happy to compensate you for your time and efforts. Thanks in advance.
 

MacVidCards

Suspended
Nov 17, 2008
6,096
1,056
Hollywood, CA
@ MacVidCards:

When you have the firmware worked out for other Nvidia 6-series cards, would you be willing to flash my MSI GTX 670 card? I got it prior to there being an official GTX 680 Mac Edition and would love to have the boot screen again. I'd be happy to compensate you for your time and efforts. Thanks in advance.

Thanks. I can do 670s very soon.

My sideline doing GPUs came about as a result of being an Art Director here in Hollywood. One day I went to edit my reel and got a warning that my GPU wasn't supported by FCP. Led me down a long road where I discovered that I could mod EFIs and make different cards work.

I have had a couple Art Director gigs recently and that has kept me from rolling out the newer cards. I also wanted to give EVGA time to make some $$$, they deserve it.

670 4GB rom is mostly done, going to start with 4GB 680 first.

I did have a meeting this morning for another shoot. "Product Porn" wherein we make stylized sexy ads for silly products. So I will be busy with that for next week but the 4GB cards are enroute.
 

pastrychef

macrumors 601
Sep 15, 2006
4,754
1,453
New York City, NY
Thanks. I can do 670s very soon.

My sideline doing GPUs came about as a result of being an Art Director here in Hollywood. One day I went to edit my reel and got a warning that my GPU wasn't supported by FCP. Led me down a long road where I discovered that I could mod EFIs and make different cards work.

I have had a couple Art Director gigs recently and that has kept me from rolling out the newer cards. I also wanted to give EVGA time to make some $$$, they deserve it.

670 4GB rom is mostly done, going to start with 4GB 680 first.

I did have a meeting this morning for another shoot. "Product Porn" wherein we make stylized sexy ads for silly products. So I will be busy with that for next week but the 4GB cards are enroute.

That's great news. I'm in no rush. Just let me know when you have time available and I can send of my 670 card to you for flashing along with compensation.

Thanks.
 

xelanaiznac

macrumors member
May 13, 2013
62
5
italy
Great work all!
So I went the pedestrian expensive way, as I needed to perform some testing, and bought the EVGA Mac edition. Works fine except all that extra dough and I still have the expansion slot fan rev to 1300RPM at differing times after boot ala PC only cards.
I was hoping for a more seamless experience:mad:
I have to run a stress test after initial boot to quite the Pro back down to regular 800RPM speed. Any hints on how to squash this annoyance? PRAM has been zapped SMC has been reset. Booting into Windows and then into OS X does seem to keep fans under control but any shut down and then a re-start will ramp the fans again. I have yet to find a definite pattern but it is a bother and makes me wonder why I didn't save the extra bucks and get a FTW model with higher clocks and the same issues.

i have the same issue too. with a mac pro 5,1 original (not flashed from 4,1)
i have this issue with both of my 2 mac pro. so, i don't think it's a mac pro problem
 
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GP-SE

macrumors 6502
Feb 27, 2013
344
52
i have the same issue too. with a mac pro 5,1 original (not flashed from 4,1)
i noticed even that my BOOSTA fans is around 850 rpm insted of 600 (when i use the 5770).
i have this issue with both of my 2 mac pro. so, i don't think it's a mac pro problem

E-mail EVGA since you have an actual EVGA Mac Edition card, hopefully EVGA gets enough complaints that they forward it to apple, and apple will release a firmware\software update to fix this!

It happens with the HD 7950, and GTX 680 official Mac Cards, and even some apple branded 5770's.
 

xelanaiznac

macrumors member
May 13, 2013
62
5
italy
E-mail EVGA since you have an actual EVGA Mac Edition card, hopefully EVGA gets enough complaints that they forward it to apple, and apple will release a firmware\software update to fix this!

It happens with the HD 7950, and GTX 680 official Mac Cards, and even some apple branded 5770's.

ok, but the problem is that i don't have a mac gtx 680 but a evga 680 with mac flash bios.
goign deeper with test, i could share these informations:

PREOPENGL TEST (istat pro)
pci 1380 rpm
boosta 856 rpm
exhaust 598 rpm
power supply 857 rpm
intake 599 rpm

POSTOPENGL TEST FAN SPEED (istat pro)
pci 800 rpm
boosta 856 rpm
exhaust 598 rpm
power supply 599 rpm
intake 599 rpm

so, the only solution that for now it's working is this one.
i have tried even another solution, putting the gtx 680 on pci express 16x slot 2, with these numbers:

pci 1040 rpm
boosta 856 rpm
exhaust 598 rpm
power supply 646 rpm
intake 599 rpm

could someone explain me what i have to do please?
 

derbothaus

macrumors 601
Jul 17, 2010
4,093
30
could someone explain me what i have to do please?

No one knows. We wait on Apple to throw some clues to vendors or a firmware patch. Until then use your stress app to ramp the fans back down on the rare occasions you do a full shut down and restart later. It no longer bugs me because I am always restarting or sleeping so the issue stays away.

The Post Open GL fan speeds look about right for 2010 Mac Pro idle. If there was a fix it would be posted.
 

xelanaiznac

macrumors member
May 13, 2013
62
5
italy
No one knows. We wait on Apple to throw some clues to vendors or a firmware patch. Until then use your stress app to ramp the fans back down on the rare occasions you do a full shut down and restart later. It no longer bugs me because I am always restarting or sleeping so the issue stays away.

The Post Open GL fan speeds look about right for 2010 Mac Pro idle. If there was a fix it would be posted.

thank you for the answer. so strange that someone has the issue and someone else doesn't.
i have a evga with this serial: 02g-p4-2687-kr
 

derbothaus

macrumors 601
Jul 17, 2010
4,093
30
thank you for the answer. so strange that someone has the issue and someone else doesn't.
i have a evga with this serial: 02g-p4-2687-kr

Who doesn't have the issue? Maybe they are in a loud room with no measuring software? There is probably a specific set of reasons why some and not others. Most likely based on firmware.
 

derbothaus

macrumors 601
Jul 17, 2010
4,093
30
That it? Seems way more DO have it.

abulia:
"I don't experience this at all, bouncing between Windows and OS X. The only time the fans peak is just prior to startup, as per normal. This card is really quiet, even under considerable load."

This is what I mean by "It no longer bugs me because I am always restarting or sleeping so the issue stays away." Sounds like abulia does the same. And even mentions the loud fan at startup.

They may not notice it or seems like normal startup to them. Did they actually use a fan meter after boot? Is the card slotted in 1? All kinds of things should be vetted before using 1 post as a guide against the overwhelming consensus.
 

cal6n

macrumors 68020
Jul 25, 2004
2,096
273
Gloucester, UK
I didn't think I had this issue on my 4,1/5,1 3.33GHz hex with a flashed PNY GTX 680.

One cold-boot later and I now know I was wrong. The PCIe fan runs at 1270 until loaded and then it settles down to 800. Warm boots are no problem, so I'm not particularly bothered, though.
 
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