Will be very interested to see where the Threadripper 3960X silicon bins out. Could have very low VID voltages for that cpu also. Should have similar improvements in power consumption and temps over Threadripper 2000 series cpus.

Or not. They may have binned all the best silicon chiplets for the 3950X and the rest into the Epyc Rome cpus.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

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This graphic gives some idea of the the Ryzen9 3950X power consumption at various thread count loading.



Notice that peak consumption happens at 10C/20T loading. This would also coincide with the highest sustainable all-core core clocks frequency. One of the reasons why a 280mm AIO is recommended for cooling with the cpu.

The 3900X has the same 145W power consumption at the same point but barely drops off at full loading, only drops 3W at 12C/20T loading compared to 10C/20T loading.

The highest sustained clock frequency for full loading occurs at the 9-10 core count loading of 4050Mhz. That is what I have observed on my 3900X also.



You can consult the full article these charts come from at AnandTech.

https://www.anandtech.com/show/15043/the-amd-ryzen-9-3950x-review-16-cores-on-7nm-with-pcie-40

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

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So what kind of power draw are we talking about for a non-turbo running, fully loaded (running Seti@Home) 3900x/3950x?

Tom

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A proud member of the OFA (Old Farts Association).

Just look at the power usage improvement over the 3900X for the same workloads.

Of course I just got the 3900X... But since it took me neigh on 4 months to capture a live one, I'd suspect it'll take as much time for people to get a 3950X, if not more time. Especially if, as you say, AMD is binning the chiplets that aren't sufficient to be in a 3950X. And you have to wonder how many that are.

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So what kind of power draw are we talking about for a non-turbo running, fully loaded (running Seti@Home) 3900x/3950x?

Tom

Look at the article I linked and read the charts.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

Just look at the power usage improvement over the 3900X for the same workloads.

Of course I just got the 3900X... But since it took me neigh on 4 months to capture a live one, I'd suspect it'll take as much time for people to get a 3950X, if not more time. Especially if, as you say, AMD is binning the chiplets that aren't sufficient to be in a 3950X. And you have to wonder how many that are.

Yes, you are correct. The quantity available is going to be very limited and will constantly sell out when it is just like the 3900X. It is also not going to sell for MSRP and will sell for what the market determines is its value. I would expect prices around $1000 to be normal. Unless you are very lucky in snagging the very first stocking in the normal resell channels, anything else offered will be by 3rd party resellers getting whatever the market will bear.

Will likely be the status quo until the Intel i9-10980 releases and ships and/or until the yield/binning improves and/or the TSMC foundry moves to the 7nm+ process.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

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I have fallen foul of the freeze at boot with Ubuntu on the 2990wx. The initial upgrade to 1910 went perfectly and ran until last night when a standard update required a reboot which froze. I circumvented this by editing the grub screen from quiet splash to nosplash but now BOINC cannot see the GPU. I understand that the problem is incompatibility of Ubuntu and Nvidia but wonder how I can resolve this simply. Do I just wat for an Ubuntu update or perhaps try to add specific Nvidia drivers? Indeed I wonder if this is linked to the mysterious offline I reported with the BIOS upgrade?

@jsm
Is there a reason you are not running 18.x?

Tom

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A proud member of the OFA (Old Farts Association).

I have fallen foul of the freeze at boot with Ubuntu on the 2990wx. The initial upgrade to 1910 went perfectly and ran until last night when a standard update required a reboot which froze. I circumvented this by editing the grub screen from quiet splash to nosplash but now BOINC cannot see the GPU. I understand that the problem is incompatibility of Ubuntu and Nvidia but wonder how I can resolve this simply. Do I just wat for an Ubuntu update or perhaps try to add specific Nvidia drivers? Indeed I wonder if this is linked to the mysterious offline I reported with the BIOS upgrade?

I did not have any luck updating/upgrading from 19.04 to 19.10. The installation froze at 99.5% of completion when it was compiling the boot image.

Had to wipe the drive and just install the 19.10 ISO image. That went fine with no issues. 19.10 comes with the Nvidia drivers embedded already in the ISO image. Didn't need to separately install the Nvidia drivers at all. The Nvidia drivers are running fine on my 19.10 development partition.

You could try and install the Nvidia drivers on your own. Either the direct from Nvidia download or install the graphics-drivers ppa and get the drivers from there.
https://launchpad.net/~graphics-drivers/+archive/ubuntu/ppa

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

Yes Tom. I noticed that Ubuntu were addressing some of the Threadripper problems and that there 19* range, although not permanent, offered improved performance. However I have been caught out by the Nvidia problem ):
jsm

Keith
Do we expect that Ubuntu will correct this problem with an update? BOINC cannot run the GPU and sudo lshw does not bring up any reference to the GTX 1060. I find this a bit confusing as obviously there is something providing the screen graphics.
Looking at the additional drivers tab on software & updates there are 4 Nvidia proprietary drivers mentioned but looking at the NVIDIA drivers page it looks like the most recent one for that GPU on a Linux platform is 440 which does not show on the additional tabs. I am quite prepared to have a go and grab a driver if you do not expect Ubuntu to tackle this problem asap but I would like to know just which one and from where (:
I did not fully understand your reference to ppa.
jsm

If you have not installed the graphics-drivers ppa yet, then the additional drivers tab in the Software&Updates utility is just showing you what drivers are in the standard Ubuntu distro. They haven't caught up with the 440 drivers yet. You will need to install the ppa to get the 440 drivers. You are running on the old default Nouveau drivers or maybe some Mesa variant. Have you used the Additional Drivers tab to install one of the offered Nvidia drivers yet?

https://launchpad.net/~graphics-drivers/+archive/ubuntu/ppa
Just visit this link and follow the instructions to install the ppa.

sudo add-apt-repository ppa:graphics-drivers/ppa

Then either use the Additional Drivers tab to install the 440 drivers or just run the install from the command line.

sudo apt install nvidia-driver-440

The Ubuntu distro package maintainers don't work in real-time. They bundle updates every couple of months so they can't be expected to have the absolutely most recent version of software. You go to the software packages repositories for that. The graphics-drivers ppa is handled by volunteers and they are usually very quick to grab the latest upstream changes in the Nvidia drivers. I see they even have Ubuntu 20.04 Focal Fossa drivers already.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

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Thank you Keith. I now understand - the extra drivers are not reported until you have told the system that it should look at that repository as well as the standards when it is seeking available updates. I followed the instructions and installed the ppa and then used software updater to add nvidia 440 which has cured the problem. Booting does not freeze and BOINC is using the gpu.
I think that is a win!
jsm

Now if you were using TBar's A.I.O. setup you could really get that rig flying jsm. ;-)

Cheers.

Now if you were using TBar's A.I.O. setup you could really get that rig flying jsm. ;-)

Cheers.

TBar hasn't compiled the AIO for Eoan yet. So he has to use the standard BOINC repo version. He would have to compile the client himself to get a locally sourced client. He still can get the science applications and app_info files from the AIO and just drop them into the repository BOINC project folder and get the benefit. Just make sure you enable execution on the binaries after the move of the files. I assume the science application binaries would still have all the dependencies met. The client and manager are the ones you would have issues with likely.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

So can you run a 3900x/3950x on a less than very expensive MB?

https://www.techspot.com/review/1942-ryzen-9-3950x-b450-motherboards/

Makes me wonder. I have a Tomahawk MB.... I need to make sure its an MSI, I guess.

Tom

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A proud member of the OFA (Old Farts Association).

So can you run a 3900x/3950x on a less than very expensive MB?

https://www.techspot.com/review/1942-ryzen-9-3950x-b450-motherboards/

Makes me wonder. I have a Tomahawk MB.... I need to make sure its an MSI, I guess.

Tom

Funny, I was just reading an article asking the very same. Answer MSI B450 Tomahawk for $110.
https://www.techspot.com/review/1942-ryzen-9-3950x-b450-motherboards/

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

I need to check my old thread and see how many gpus it supports. Oh, know here I go again. Down boy. Down boy. Tom

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A proud member of the OFA (Old Farts Association).

I need to check my old thread and see how many gpus it supports. Oh, know here I go again. Down boy. Down boy. Tom

I have a MSI Tomahawk b350 not the b450 https://www.msi.com/blog/amd-ryzen-b350-vs-b450-chipset-difference So I would still have to upgrade to a B450 Max, I think.

Tom

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A proud member of the OFA (Old Farts Association).

So can you run a 3900x/3950x on a less than very expensive MB?

https://www.techspot.com/review/1942-ryzen-9-3950x-b450-motherboards/

Makes me wonder. I have a Tomahawk MB.... I need to make sure its an MSI, I guess.

Tom

Funny, I was just reading an article asking the very same. Answer MSI B450 Tomahawk for $110.
https://www.techspot.com/review/1942-ryzen-9-3950x-b450-motherboards/

Buildzoid just “reviewed” all the X570 and B450 mobos. I suppose my B450 Pro4 is not a good one. No surprise for the price, so when I eventually upgrade I’ll keep it in the 8c/16t range.

Link https://youtu.be/ti38JS8RuPU

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Seti@home classic: 1,456 results, 1.613 years CPU time