MP 6,1 Trash can GPU check?

[shaocaholica]

So I’m new to the 2013 MP. Did some digging and found the 2016-2018 recall for ‘bad’ GPUs. But I’m a bit confused about what’s actually broken. Are the GPUs actually bad or just overheating due to degraded thermal compound or just overheating beyond the thermal capacity of the cooling system? What did apple do to fix it for people who sent in for the recall?

Lastly, I may get my hands on one for free. How do I check if the GPUs are still ‘good’?

 

[Nguyen Duc Hieu]

So I’m new to the 2013 MP. Did some digging and found the 2016-2018 recall for ‘bad’ GPUs. But I’m a bit confused about what’s actually broken. Are the GPUs actually bad or just overheating due to degraded thermal compound or just overheating beyond the thermal capacity of the cooling system? What did apple do to fix it for people who sent in for the recall?

Lastly, I may get my hands on one for free. How do I check if the GPUs are still ‘good’?

If the GPU survive 10~15min of Cinebench R23 and/op Unigine Valley, then it's supposed to be good enough.
Don't torture it with Window's Prime 95.

 

[h9826790]

If the GPU survive 10~15min of Cinebench R23 and/op Unigine Valley, then it's supposed to be good enough.
Don't torture it with Window's Prime 95.

AFAIK, Cinebench R23 is a CPU benchmarking software, it won't stress the GPU.

For multi GPU compute, he may use Luxmark for Torture test.

Unigine Valley can stress the GPU, but only GPU B can be stressed.

 

[TzunamiOSX]

I would also say, a OpenCL test like Luxmark is the best way to stress both GPUs.

You can also install Windows and play a game with Crossfire X enabled.

I have repasted CPU and GPUs with thermal Grizzly and get better temperatures. After this I have used the Apple Service Diagnostic Software to completely test the cooling system, CPU and GPUs.

Last was installing TG Pro to get a bit higher base fan speed and higher fan speed if GPUs and/or CPU working really hard.

 

[shaocaholica]

I would also say, a OpenCL test like Luxmark is the best way to stress both GPUs.

You can also install Windows and play a game with Crossfire X enabled.

I have repaste CPU and GPUs with thermal Grizzly and get better temperatures. After this I have used the Apple Service Diagnostic Software to completely test the cooling system, CPU and GPUs.

Last was installing TG Pro to get a bit higher base fan speed and higher fan speed if GPUs and/or CPU working really hard.

When you repasted with TG how much of a temp drop did you get? Or if the temps didn't drop how much more speed did you get if you remember.

 

[TzunamiOSX]

Hard to say because GPUs and CPU using the same Cooler, but I can say that the GPUs need much longer to reach the max temperature. At my sight, it is impossible to make the 6,1 cooler. You can only delay the heating up on load.

 

[shaocaholica]

Thanks. I'm not running mine hard. Just a collectible really. I'll repaste it eventually.

Lexmark is cool too. Uses both GPUs. Same for Nuke but that's a pretty niche app.

 

[h9826790]

The newly release Cinebench 2024 can also do multi GPU rendering now.

I tested it, quite a good GPU benchmarking tool for old Mac. During the rendering test, all GPU can be stressed to 100%, but just about 50% demand to a single CPU core.

The very old Cinebench GPU test is a CPU single core limiting test. The faster the CPU (single core) you have, the higher the GPU test score you can get. Which makes it completely useless.

But the 2024 version is good now, fixed that issue.

 

[Mac3Duser]

My 6.1 with 12-cores and D700 in stress test is around 80° max

 

[shaocaholica]

The newly release Cinebench 2024 can also do multi GPU rendering now.

I tested it, quite a good GPU benchmarking tool for old Mac. During the rendering test, all GPU can be stressed to 100%, but just about 50% demand to a single CPU core.

The very old Cinebench GPU test is a CPU single core limiting test. The faster the CPU (single core) you have, the higher the GPU test score you can get. Which makes it completely useless.

But the 2024 version is good now, fixed that issue.

Cinebench 2024 doesn't support the GPUs in the 2013 Mac Pro trashcan. You can only run CPU tests on the 2013 MP.

 

[h9826790]

Cinebench 2024 doesn't support the GPUs in the 2013 Mac Pro trashcan. You can only run CPU tests on the 2013 MP.

Oh, I didn't expect that, I've just ran that on my 2009 Mac Pro. But of course, the GPU is upgraded.

However, I wonder why it can't work on the 2013 Mac Pro. The GPU on the 2013 Mac Pro also support Metal.

 

[mikas]

Ok I had almost abandonded my cMPs for work in favor for PCs. But what a heck, the new cinebench gave me an idea to push it once more.

I finally took the plunge and installed Opencore (Martin Lo package) to my dual Pixlas cMP 2009. I had the VIIs to fill it up at three of them, but decided to only put in two this time. And after a couple of hours reading the OC guides and installing Pure Monterey to an 2,5" SSD, I got to run cinebench 2024. Did the throttling test of 10 minutes, case open, room temp smthng like 23 °C at the moment.

Didn't beat M2 Ultra 76 cores though (8860). But it was close enough (8201). M1 Ultra (5968) was left behind in the charts easily. With three VIIs I would go past a W6800 Duo (approx. 9643 = 2x Rad Pro W6800) I think. I'm not sure if I have read the results in a right manner. Might have to wait for results to settle too for a while, and try to read correctly. The test seems more up to date like as others have said earlier in the thread.

ps. And then there are the nVidias. They are far away ahead of all of these AMD and Apple GPU HW.

And about the beloved Trashcans (I'm OnTopic again), I might go and run Cinebench 2024 on one of my tcMPs with an eGPU (RX6800XT) attached to it. I think I'm gonna get a ~4000 out of it.

 

[AlexMaximus]

Here is my Benchmark Cine24 with only ONE GPU (6800XT) in my MP5.1

It really shows how much a second VII brings to the table.

Kudos to Mikas for his nice multi GPU 5.1 system. NICE !!

 

[Mac3Duser]

results are crazy, one RTX 4060 ti is 15482 pts in cinebench 2024 GPU
(M2 ultra GPU 76 cores = 8668)