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MP 7,1 CPU upgrade in 2019 Mac Pro

Snow Tiger said:
Vega F.E.s in theory pack all the punch of the Radeon Pro WX 9100 - AMD's workstation flagship .
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And Radeon VII is reported to be ~= to the Radeon Instinct MI50 (7nm Vs 14nm 9100). Better, no?


Snow Tiger said:
Meet my friend : the magical shielded PCIe extension cable :
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Oh, we’ve met. I ran two fat GPUs in my 5,1 for years using it. One card hung from mini bungees out the open side panel. My son called it Frankenputer.
 
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Softco said:
And Radeon VII is reported to be ~= to the Radeon Instinct MI50 (7nm Vs 14nm 9100). Better, no?
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Here's how some alternative GPUs perform in a MP7,1 , but they have some annoying issues .

2019 Mac Pro - GPU options

real world speed test results for performance minded Macintosh users
barefeats.com

Rob is patiently waiting for me to deliver the Vega F.E. results , but I got tied up with some repair jobs .

By the way , if you ever tear down an AMD Radeon VII , please be aware it has a graphite TIM . Those are tricky to work with as the fragments are highly electrically conductive when broken up and even if the TIM pad retains its original form it easily loses its "memory" shape in deceptive ways if re-used .

Softco said:
Oh, we’ve met. I ran two fat GPUs in my 5,1 for years using it. One card hung from mini bungees out the open side panel. My son called it Frankenputer.
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My finest hour - at least then . 3 x GTX 980 Ti in a Nehalem cMP . These cards had full bandwidth . I also learned Apple firmware would not support four non-EFI GPUs . These Systems did support four EFI GT 120s , though .


P2224506.JPG


I later managed to install and internally power Dual Vega F.E.s in a cMP .
 
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Softco said:
Record scratch!
Were all the CUDA cores in all 3 cards accessed simultaneously? I was told that Mac didn’t support SLI or anything like it.
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All the Cuda Cores were accessed concurrently . It was a hell of an experiment . This is not SLI . Each GPU had a direct connection to a PCIe bus using those shielded 3M PCIe extension cables . Of course , this would not work today , since we cannot use nVidia GPUs with the latest macOSes ( with some legacy , low performance , GPU exceptions ) .

You might be interested to know you can install Catalina in a Nehalem cMP with a nVidia EFI GT 120 as the sole installed GPU . It's a bad idea to run that OS with the card , though , since there is no hardware acceleration and the GT 120 is just so weak anyways as a ten year old card .
 
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Snow Tiger said:
Of course , this would not work today , since we cannot use nVidia GPUs with the latest macOSes ( with some legacy , low performance , GPU exceptions ) .

You might be interested to know you can install Catalina in a Nehalem cMP with a nVidia EFI GT 120 as the sole installed GPU . It's a bad idea to run that OS
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Not so fast. My bread and butter machine (until 7,1 shows up) is a 5,1 running High Sierra with a 1080Ti. I also have a 980Ti that I’m not using. Are you saying that I could stick that into the 5,1 and it would improve frame rates in Premiere Pro and render Adobe Media Encoder faster?
That would definitely make the wait for the 7,1 less painful.
 
Softco said:
Not so fast. My bread and butter machine (until 7,1 shows up) is a 5,1 running High Sierra with a 1080Ti. I also have a 980Ti that I’m not using. Are you saying that I could stick that into the 5,1 and it would improve frame rates in Premiere Pro and render Adobe Media Encoder faster?
That would definitely make the wait for the 7,1 less painful.
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10.13.x was the last macOS you could use nVidia cards with , as long as you d/l the drivers from Team Green . Mojave and Catalina can't use them .

I instinctively recoil at the thought of a mixed GPU rendering array . Some ppl like it , but I'm conservative . If rendering data gets sent to the wrong GPU , it'll kernel panic .

If you can afford one , I'd recommend a MP7,1 . Despite its shortcomings , I really like mine .

If you want to wait , then you might want to install a Radeon VII in your cMP if this is for production .
 
Snow Tiger said:
If you can afford one , I'd recommend a MP7,1 . Despite its shortcomings , I really like mine .
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I can afford it. It’s a when, not if.
I’m trying to hold out until the W5700X option turns on. I can’t stand the thought of paying a cent for a 580x, let alone all the cents that I’m sure Apple is charging for it. And that goes double for the Vega II that benches identically to the Radeon VII and yet costs 5X.

In the meantime I’m trying not to think about all the time I could have saved if I’d known dual Nvidias worked in High Sierra. I’d swear I read in multiple places that they didn’t.
 
Softco said:
In the meantime I’m trying not to think about all the time I could have saved if I’d known dual Nvidias worked in High Sierra. I’d swear I read in multiple places that they didn’t.
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Without a external PSU or Pixla's mod, they really don't. Anyway, there are several threads here on how to safely install dual GTX 1080/1080Ti/TITANs, for people that need CUDA it's a very worthy modification.

If you can wait for the release of W5700X, will probably be worth the time. NAVI GPUs work a lot better for video encoding than any Polaris/VEGA/VII GPUs, where VCE didn't really changed between Polaris and VEGA, while VII has dual UVDs. It's the first meaningful improvement that AMD does with the VCE and UVD engines, both now integrated inside a new ASIC, the VCN.
 
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Coyote2006 said:
Sorry but you see this probably from a pro PC worker point of view, dealing with PC parts all day long. If a normal PC-user with no hardware knowledge starts to build a $5000 PC it surely takes 3 days if not more to find the right parts order them build everthing together. Probbaly you haven't still watched the video, even for the pros this PC built was a challenge.

And the pros are dealing with all the newest parts daily and inform themselves in the Internet or in Magazines. You have also to count this time.

The high price of the MacPro is also demanded to the extremly clever built internals. If this is need? Probably not, but it's cool and almost a peace of art. If you're right with a cabled PC then fine. I prefer the MacPro.
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I am sure that was true 10 years ago. Today, not so much.
 
tsialex said:
Without a external PSU or Pixla's mod, they really don't. Anyway, there are several threads here on how to safely install dual GTX 1080/1080Ti/TITANs, for people that need CUDA it's a very worthy modification.
Click to expand...

I’ve always used an external PSU for my GPU. A lot simpler (and uglier) than Pixla’s mod.

Do you have a link to the dual 1080Ti thread you mentioned? I did a search and the only result was you mentioning it here.
 
highlighted said:
I bought the 3265 non M as well. I installed it and the machine is running, but only recognises 8 cores.
Any Ideas what could be wrong?
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Examine if there is a gap between the two CPU heatsink fasteners and their corresponding CPU heatsink standoffs . It could be you under-tightened or overtightened the fasteners . You can't go by tactile feedback since there is a lot of resistance . I actually carefully count the number of turns of the drivers and balance torque .

If that doesn't work , remove the processor and examine the socket . You might have damaged it because the silicon is big and heavy .

Do you have access to another Cascade Lake Xeon compatible System ? If you do , you could verify the silicon is working as expected in a Windows workstation .
 
highlighted said:
I bought the 3265 non M as well. I installed it and the machine is running, but only recognises 8 cores.
Any Ideas what could be wrong?
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please post a geekbench info/MacCPUID shot

so we can tell you whether or not you actually got a 3265 or not :)

(I recall a similar situation where someone bought an E5 2697 V2 for their MP6,1 and got a 1.4Ghz ES chip instead!)
 
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LightBulbFun said:
please post a geekbench info/MacCPUID shot

so we can tell you whether or not you actually got a 3265 or not :)

(I recall a similar situation where someone bought an E5 2697 V2 for their MP6,1 and got a 1.4Ghz ES chip instead!)
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It would have been nice if @highlighted had an actual picture of the processor to show us . Now that I think about it , he may have been the victim of fraud . Perhaps he did not receive the processor he thought he bought or maybe someone replaced the IHS . It's not impossible .
 
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DSM2.Hackintosh said:
I use a 28 Core 3275 and don't have any problems at all.
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Snow Tiger said:
It would have been nice if @highlighted had an actual picture of the processor to show us . Now that I think about it , he may have been the victim of fraud . Perhaps he did not receive the processor he thought he bought or maybe someone replaced the IHS . It's not impossible .
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tomorrow I will have a look at it and try to figure out what's wrong.
Thanks for the help and wish me luck
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Snow Tiger said:
It would have been nice if @highlighted had an actual picture of the processor to show us . Now that I think about it , he may have been the victim of fraud . Perhaps he did not receive the processor he thought he bought or maybe someone replaced the IHS . It's not impossible .
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will do that tomorrow as well
 
DSM2.Hackintosh said:
I use a 28 Core 3275 and don't have any problems at all.
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well, opend up everything again. Good news is: no scam
They just sent the wrong processor 😄 And we didn't check if its the right one.
Probably have to wait 2 weeks to get the right one.
Thanks to all who wanted to help!
This is an awesome forum. Cheers
 
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highlighted said:
well, opend up everything again. Good news is: no scam
They just sent the wrong processor 😄 And we didn't check if its the right one.
Probably have to wait 2 weeks to get the right one.
Thanks to all who wanted to help!
This is an awesome forum. Cheers
Click to expand...

Can I be your bank teller ? :D . I run a mostly not for profit bank .

Let us know if you need any assistance once your real silicon comes in .
 
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At the risk of being repetitive or silly...I have a 16-core CPU in my original 2019 Mac Pro. I have 512Gb of RAM and don't expect to upgrade it. Is it (a) possible and (b) does it make sense to upgrade it to a 28-core W-3275 (non-M)? My video workloads are heavy.
 
rene.bonvanie said:
At the risk of being repetitive or silly...I have a 16-core CPU in my original 2019 Mac Pro. I have 512Gb of RAM and don't expect to upgrade it. Is it (a) possible and (b) does it make sense to upgrade it to a 28-core W-3275 (non-M)? My video workloads are heavy.
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Possible, sure is. It's tricky to replace the processor, but you don't have to do anything else. Remove the old, install the new one.

Makes sense it's a much more subjective question. If you workload will be improved enough to pay for the cost of the upgrade, do it.
 
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