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 21 
 on: April 15, 2018, 09:19:49 PM 
Started by Rominator - Last post by eVasilis
What "2.5 GT/s" bug? If you mean the GPU cannot negotiate at 5GT/s link speed in macOS, that was fixed by Nvidia long time ago.


Just a cosmetic one in the PCI section of system report


 22 
 on: April 15, 2018, 08:36:32 PM 
Started by Rominator - Last post by h9826790
I am one of those with an unaffected system (performance wise), but I am with the genuine Mac Pro 2009 (flashed 5,1).

Hi All,

I read the whole topic to find a possible solution for my bad nVidia 1080Ti experience, mainly since Sierra / High Sierra. As noticed by members in the hackintosch scene recently on TonyMacX86 / InsanelyMac the nVidia drivers are terrible. Special the latest are almost unusable. Fallback to older versions will help but to some point they will cause problems too because they are old and not intent to be used on the latest MacOS versions.

At this moment I'm using an old version of the nVidia drivers : 378.10.10.10.25.106 together with two options "System Preferences / Accessibility / Display / Reduce Motion + Reduce Transparency the GUI responds more snappy and to some point even to an almost acceptable experience. Also Cuda performance is very good 12200GB / Host to Device and reverse. The issue looks to be GUI related only.

I am still looking to a possible solution or to find out why the hell the experience is so bad. So I bought an old R9 280X to be added in my hack. I was unlucky because the card did only one good Valley bench and after it failed and caused artefacts so this card is dead. The card was performing perfectly without issues but again its no party against the 1080Ti when it comes to gaming which I also do on my Hack from time to time. Also struggling with many GPU's in a system is also far from comfortable. I also considered to move to AMD Vega 64 but I'm to spoiled with the 1080Ti if we are talking to gaming performance in windows, especially when it comes to 4K gaming.

After reading this topic I came to a few conclusions.

  • Best is to stick to MacPro5,1 SMBios definition. This definition is supported by the nVidia WebDrivers. Other SMBios definitions are unsure to work as they should.
  • The main reason of lags can be narrowed to the latest CPU's like Skylake and newer or in combination with mainboards with the latest chipsets to drive these CPU's

Do I forget things here ˆˆˆ?

I also read comments from guys in this topic that they are fully comfortable with the drivers and don't experience any lags at all with 10xx or specific with the 1080Ti. Are they indeed on older CPU / Mainboards?
Do I miss something, and is there something to be the "Golden Tip" to solve my issue?

Because eGPU's are officially supported more people will throw in a GPU in an enclosure to profit from extra external GPU performances. Although Apple has announced that only AMD will be supported there is a chance
that nVidia will provide better drivers that their cards are supported as well. I hope this brings better drivers for us, hackintoshers as well!.

 

 23 
 on: April 15, 2018, 08:34:59 PM 
Started by Rominator - Last post by h9826790
What "2.5 GT/s" bug? If you mean the GPU cannot negotiate at 5GT/s link speed in macOS, that was fixed by Nvidia long time ago.


All those updates, OS or NVIDIA side, and the "2.5 GT/s" bug remains. Probably it's here to stay.

 24 
 on: April 15, 2018, 04:54:30 PM 
Started by the_gael - Last post by the_gael
that's what I thought - but it has artefacts and colours don't display properly  - works perfectly in 2 Mac Pro 1.1's but not in a Hack.

I do seem to remember that early Mac Pro's did not have a 64bit EFI sector so wondering if this is part of the issue.

 25 
 on: April 15, 2018, 03:14:51 PM 
Started by Rominator - Last post by Rominator
Sierra 10.12.x

55 48 89 E5 41 57 41 56 41 55 41 54 53 48 81 EC 38 01
55 48 89 E5 31 C0 5D C3 41 55 41 54 53 48 81 EC 38 01

High Sierra 10.13.x

55 48 89 E5 41 57 41 56 41 55 41 54 53 48 81 EC 28 01
55 48 89 E5 31 C0 5D C3 41 55 41 54 53 48 81 EC 28 01

Tested and working still in 10.13.4

 26 
 on: April 15, 2018, 02:40:55 PM 
Started by Rominator - Last post by Rominator
So, embarrassing to admit, my 2nd TB3 port wouldn't work due to lint.

Cleared it out and managed to get 2 @ Nvidia eGPUs going. Both seemingly capable of 4 displays, and internal screen also working fairly normally.

So, in my limited TB3 experience on 2 MBPs from 2016, all TB3 ports able to run an eGPU. Was not the case with TB2.

Anyone care to see Node vs. Core TB3 speeds?

Oh, and new crop of 10.13.4 EFI eGPUs enroute to Barefeats. I'll let you know when he posts results.

The new TB3 bootscreens should come in Handy...

 27 
 on: April 15, 2018, 02:10:09 PM 
Started by the_gael - Last post by CapnDavey
Just install the card it haas a hybrid EFI/ bios so it will work fine in a PC like it is

 28 
 on: April 15, 2018, 09:21:41 AM 
Started by the_gael - Last post by the_gael
I have an ATi 5770 which was previously flashed for Mac Pro 1.1 (worked perfectly). That Mac Pro has now been dismantled and I would like to use the card in a Hackintosh.

What tool should I use to flash it again for use in a hackintosh?

 29 
 on: April 15, 2018, 01:53:46 AM 
Started by ZZZAC - Last post by Rominator
You are 100% right.

What's sad is that I'm pretty sure the GT650/GT750M iMac EFI could be used to make other Kepler MXM cards work.

I actually bought a variety of cards and started work on it but finally lost interest. Real issue is the flashing/testing.

The only real way to do it would be an iMac with a PCIE/MXM extender so that the card would be exterior. The card itself would have a socket for SOIC-8 EEPROM. It would also need an external heatsink for use during testing.

After much testing we could find a few cards that would be perfect. Then testing in the machine for power/heat would need to happen.

Finally a product would be ready.

At that point used cards from Ebay and other sources would need to be bought, tested, flashed, tested again and finally prepared for sale.

Once sold it would be up to end user to install. I have found out the hard way that people will find many ways to screw up an install.The first GTX580 I ever sold the guy ran the 6 & 8 from a single 6 pin. Burned up 580 and screamed at me about it.

Most end users are hard pressed to install a standard GPU, the myriad ways an iMac install could go wrong could lead to misery for both ends.

This is why I have looked for an iMac repair shop in LA to develop with. They would provide testing gear, I'd write rom, they'd do installs.

Hard to imagine it working for standard end users, I think there would be much trouble.

 30 
 on: April 14, 2018, 01:54:38 PM 
Started by Rominator - Last post by ClassicMartini
Hi All,

... possible solution for my bad nVidia 1080Ti experience, mainly since Sierra / High Sierra. .. recently on TonyMacX86 / InsanelyMac the nVidia drivers are terrible. Special the latest are almost unusable.

Have you tried "NvidiaGraphicsFixup" with Lilu?

Check back at IM and TM for latest development. Extra step, but 'seems' to have fixed performance with latest drivers and OS.

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