Have you looked into the info/resources at win-raid.com forums? I've seen mention of Apple EFI components leveraged by users who are moddng PCI Motherboard EFI ROM, in the same manner we are for the cmp.
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5GT/s for AMD card without resistor mod
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Have you looked into the info/resources at win-raid.com forums? I've seen mention of Apple EFI components leveraged by users who are moddng PCI Motherboard EFI ROM, in the same manner we are for the cmp.
Not yet, I've just go there and have a look (thanks for the link), it seems will cause me few months to catch up everything
If it can help, I do have in my possesion three different system for pcie switch :
a cyclone micro system.
a amfeltec card.
a nvidia tesla chassis.
I am definitely pushing evrybody who want to improve their macpro to give a look to ancient tesla s1070/2050/2070 chassis.
they are working out of the box and are recognized as a true 16x gen 2
there is 2 host card, get the one with two slot and your system will go 1x16 to 2x2x16 (there are 4 16x slot in the tesla chassis.)
the only thing that I can say is that my flashed gtx 780 in slot 1 is advertising at 16x 2,5 and not 5.0.... I will report on how it behaves in the tesla enclosure
from my little experience what I can say is that pcie switching works great at sharing a x16 bandwidth over several things... I had two areca 1880 with 2x12 drive and a 16x gpu on the same chassis, and all the speeds where the same no matter how or or what was the workload going from 1/2/3 cards.
I think as pcie is bidirectional, the swich is actually a very good way to “queue” bandwidth and therfore use as much as possible from our old cMP.
the funy thing is that Pcie expension works great with thunderbolt...
I have multiple time hooked up my macbook with a sonnet echo express adapter in wich i put the cyclone pcie host card.
see it preatty much as a super usb enclosure...
as long as all of what is pluged dont reach a total of over 10 Gb/s(80GB/s) in BOTH WAY, you dont have a bottleneck... in theory
from my experience even with the 4xsm951 in raid 0 and the gtx780, and the 2 raid card, I couldn experience any slowdown... so it is safe to assume that a real world value is around 7-8Gb/s
remember that all the ultra-fast watever fancy “pro-top-noch-high-end-revolution” thunderbolt 3.0 stuff is only theorical 5Gb/s (40GB/s) so half of that...
to me pcie expender are the way to go because they are preatty much future proof for at least 2-3 years...
how many of us can saturate a total of 20Gb/s(160GB/s) that we got in our machine???
it is safe to assume that no matter what the new mac pro will be in 2019, it will have at least 2 pcie 3.0x16 slot...
so all those pcie expension sytem are virtually future-proof... because of the essence of what PCIE is...
a cyclone micro system.
a amfeltec card.
a nvidia tesla chassis.
I am definitely pushing evrybody who want to improve their macpro to give a look to ancient tesla s1070/2050/2070 chassis.
they are working out of the box and are recognized as a true 16x gen 2
there is 2 host card, get the one with two slot and your system will go 1x16 to 2x2x16 (there are 4 16x slot in the tesla chassis.)
the only thing that I can say is that my flashed gtx 780 in slot 1 is advertising at 16x 2,5 and not 5.0.... I will report on how it behaves in the tesla enclosure
from my little experience what I can say is that pcie switching works great at sharing a x16 bandwidth over several things... I had two areca 1880 with 2x12 drive and a 16x gpu on the same chassis, and all the speeds where the same no matter how or or what was the workload going from 1/2/3 cards.
I think as pcie is bidirectional, the swich is actually a very good way to “queue” bandwidth and therfore use as much as possible from our old cMP.
the funy thing is that Pcie expension works great with thunderbolt...
I have multiple time hooked up my macbook with a sonnet echo express adapter in wich i put the cyclone pcie host card.
see it preatty much as a super usb enclosure...
as long as all of what is pluged dont reach a total of over 10 Gb/s(80GB/s) in BOTH WAY, you dont have a bottleneck... in theory
from my experience even with the 4xsm951 in raid 0 and the gtx780, and the 2 raid card, I couldn experience any slowdown... so it is safe to assume that a real world value is around 7-8Gb/s
remember that all the ultra-fast watever fancy “pro-top-noch-high-end-revolution” thunderbolt 3.0 stuff is only theorical 5Gb/s (40GB/s) so half of that...
to me pcie expender are the way to go because they are preatty much future proof for at least 2-3 years...
how many of us can saturate a total of 20Gb/s(160GB/s) that we got in our machine???
it is safe to assume that no matter what the new mac pro will be in 2019, it will have at least 2 pcie 3.0x16 slot...
so all those pcie expension sytem are virtually future-proof... because of the essence of what PCIE is...
You can set PCIe version from command line:
https://forums.macrumors.com/threads/amfeltec-x16-pcie-with-4-ssds-5900-mb-s.1936311/page-9
post #212
I have made a handy script, but have had no success in getting it to run on boot.
ez
https://forums.macrumors.com/threads/amfeltec-x16-pcie-with-4-ssds-5900-mb-s.1936311/page-9
post #212
I have made a handy script, but have had no success in getting it to run on boot.
ez
How are you deciding it doesn’t work? Apple System Profiler won’t reflect it, but pciutils does.
Which thread on netkas so I can see your discussion there?
Just to bring up an older thread, has there been any progress on the 5 gt/s instead of the 2.5 reported by the RX580.
my Evga gtx680 Mac edition always reported 5gt/s link speed, RX580 all though 16X is only reporting 2.5gt/s
any one found a solution or we stuck with 2.5gt/s with the RX580
Matty
my Evga gtx680 Mac edition always reported 5gt/s link speed, RX580 all though 16X is only reporting 2.5gt/s
any one found a solution or we stuck with 2.5gt/s with the RX580
Matty
From what I’ve found so far I don’t think there’s any real way to do it yet,on another forum, people have been using the Apple bug report system to report the countless issues that the rx 580 and rx 560 are having on Mojave because mojave’s officially supported GPUs are the 560 and 580. I’ve sent in a report about this 2.5gt/s link speed and have yet to get a response.
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Also I bet you could get more definitive answers if you remade this threads because now that mojave is out and these cards are going to be officially supported, we can bug report them and get help from Apple at this stage
I really want to move up to an RX580, but until some of these issues (FV, BootPicker, link speed) are worked out I just can’t see me doing so.
Apple really needs to throw us old timers a bone, instead of boning us. Especially if this is the last hoorah for the cMP.
It would be great if we came up with a solid community solution too. I’m starting to trust home brewed and 3rd party solutions more.
Apple really needs to throw us old timers a bone, instead of boning us. Especially if this is the last hoorah for the cMP.
It would be great if we came up with a solid community solution too. I’m starting to trust home brewed and 3rd party solutions more.
will apple support bug reports on non official apple RX580's if they plan to produce there own retail version of the card I wonder?
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I agree, Its a shame apple put the beta's out knowing people will use the RX580 official card during this, yet offer no official 5 gt/s in system profile. I think they will most likely release an apple version of the RX580 which will show 5gt/s and charge some stupid price for it.
Still we live in hope, but apples history isn't good in this so I expect nothing but a work around at some point.
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I agree, Its a shame apple put the beta's out knowing people will use the RX580 official card during this, yet offer no official 5 gt/s in system profile. I think they will most likely release an apple version of the RX580 which will show 5gt/s and charge some stupid price for it.
Still we live in hope, but apples history isn't good in this so I expect nothing but a work around at some point.
When Apple comes back for more info - or - the bug is marked as duplicate, it's a good sign Apple is working on the issue. I've seen this on multiple mac pro related issues I've reported into the apple bugreporter since 2009, starting with an issue that caused CPU to overheat whilst playing a mp3.
Case in point, the rx580 HDMI 2.0 output issue. I entered a bug the day after Apple introduced the RX580 dev kit over a year ago. After Apple initially requested more hardware info, they were silent until Feb of this year, when they tagged my report as duplicate. A couple months later the fix showed up in the drivers without any notice or mention.
I've been running a rx480 since it launched as the 7950's support for a 4K displayport connection leaves little to be desired. Although a spare EFI card for those once a year situations, the hassle is worth the effort.
Patience is a virtue when it comes to Apple fixing their 100% funded drivers.
Well we can hope they get there finger out and at least have something ready for the next Mac Pro and OSX which these cards are supposed to be supported in. after all its most likely only a little fix when your in the know
I filed a bug report on this, and the firmware for NVMe boot support.
Why is it that my R9 380X has two presentations in System Profiler?
What's this audio device thing that's showing up? It's PCI slot 1, so I'm guessing the card has some form of audio hardware built in that somehow is recognised as a separate device?
Add the two 2.5 GT/s together and you get 5 GT/s maybe?
What's this audio device thing that's showing up? It's PCI slot 1, so I'm guessing the card has some form of audio hardware built in that somehow is recognised as a separate device?
Add the two 2.5 GT/s together and you get 5 GT/s maybe?
Attachments
You won’t get 5GT/s becasue of that.
And as per your screenshot suggested. There is no driver installed for the graphic card’s audio hardware. Therefore, it’s doing absolutely nothing in MacOS.
What magic does Nvidia apply with their webdrivers that their cards report back as 5GT/s? is this known or a mystery?
Apple enabled 5GT/s on BootROM 138.0.0.0.0. Confirmed on RX580/560/HD7870.
Just FYI audio is still not enabled for me with the new bootrom and the Sapphire Pulse RX 580 8GB (running the new 138 firmware and Mojave PB6). I have reported it as a bug to Apple, as I'm sure other people have, so Apple must be aware of it.
And frankly, of all the remaining issues with the new metal-compatible recommended cards, this would be by far the easiest one for them to fix. All they have to do is add the PCI device IDs for those cards to their existing HDMI audio driver. If you haven't reported this bug yet, please do!
I’ll report it next week after I install my RX 580.
btw, I have several firmware bug(s) reports under review at the moment.
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I have a MacPro 3,1 with AMD HD7950. Do I understand correctly from your above statement there is a way to mod the BIOS to get 5GT/s? If so, can you point out how to make this work? Or is the only possibility to do the resistor mod?
Only MP5,1 got the change to PCIe 2.0 with every card with BootROM 138.0.0.0.0.
Would it be possible to figure out what is the difference between BootROM 138 and the previous one to see what is changed to enable PCIe 2.0?
Alternatively, is there a good guide for the resistor mod? I have found some info in the past, but that was not really clear to me. Thanks in advance for any help!
Alternatively, is there a good guide for the resistor mod? I have found some info in the past, but that was not really clear to me. Thanks in advance for any help!
Sure, but you will need to find someone with IDA or another X86-64 decompiler. People with access to $4k software and wiling to help will be the difficult part.
Another thing, when 138.0.0.0.0 was released a lot of people did benchmarks with MP51.0089.B00 and after the 5GT/s firmware upgrade - most results were better by 3 to 5%.