New RTX3xxx cards

A forum for discussing FAH-related hardware choices and info on actual products (not speculation).

Moderator: Site Moderators

Forum rules
Please read the forum rules before posting.
scott@bjorn3d
Posts: 80
Joined: Tue Dec 19, 2017 12:19 pm

Re: New RTX3xxx cards

Post by scott@bjorn3d »

EVGA boards with the 6 cap pictures where taken before they found issue, all shipping cards are right.
ajm
Posts: 754
Joined: Sat Mar 21, 2020 5:22 am
Location: Lucerne, Switzerland

Re: New RTX3xxx cards

Post by ajm »

ap1978 wrote:"Grapevine says that there are reports of instabilities on ASUS TUF and Strix cards as well. So 6x MLCC does not make you immune."

reddit - Ampere POSCAP/MLCC Counts : hardware
Well, all the more reason for FAH to test these cards for their specific use case. Because the problem appears without manual overclocking, when just using the card as stock. It might be a catastrophe when those cards will start to fold...
ap1978
Posts: 18
Joined: Wed Nov 19, 2008 4:53 pm

Re: New RTX3xxx cards

Post by ap1978 »

ajm wrote:
ap1978 wrote:"Grapevine says that there are reports of instabilities on ASUS TUF and Strix cards as well. So 6x MLCC does not make you immune."

reddit - Ampere POSCAP/MLCC Counts : hardware
Well, all the more reason for FAH to test these cards for their specific use case. Because the problem appears without manual overclocking, when just using the card as stock. It might be a catastrophe when those cards will start to fold...
Sure :e(
MeeLee
Posts: 1375
Joined: Tue Feb 19, 2019 10:16 pm

Re: New RTX3xxx cards

Post by MeeLee »

For most people folding on the 3080 gpus, it wouldn't matter much.
Since that gpu has like a ~320W tdp limit, I would presume that most people would just lower the power slider, and run it at a much lower power consumption, and a slightly lower boost speed.
ajm
Posts: 754
Joined: Sat Mar 21, 2020 5:22 am
Location: Lucerne, Switzerland

Re: New RTX3xxx cards

Post by ajm »

Slightly? Someone on reddit claims that he can avoid the crashes at 1850 MHz and 0.9 V. For FAH, I guess he'd have to go even lower than that...
I canceled my order.
foldy
Posts: 2061
Joined: Sat Dec 01, 2012 3:43 pm
Hardware configuration: Folding@Home Client 7.6.13 (1 GPU slots)
Windows 7 64bit
Intel Core i5 2500k@4Ghz
Nvidia gtx 1080ti driver 441

Re: New RTX3xxx cards

Post by foldy »

They for sure will fix the HW in 2nd edition or provide BIOS updates. One reason to wait before buy is the AMD release soon which maybe lowers Nvidia prices more. And the Nvidia 2nd edition HW may have more VRAM 16GB+ if AMD also provides high VRAM on its upcoming GPUs. Then the low VRAM nvidia 1st edition GPUs may get even cheaper and still are good enough for FAH.
HaloJones
Posts: 920
Joined: Thu Jul 24, 2008 10:16 am

Re: New RTX3xxx cards

Post by HaloJones »

A BIOS update can only reduce the GPU Boost settings which can just as easily be achieved by underclocking with Afterburner
single 1070

Image
MeeLee
Posts: 1375
Joined: Tue Feb 19, 2019 10:16 pm

Re: New RTX3xxx cards

Post by MeeLee »

HaloJones wrote:A BIOS update can only reduce the GPU Boost settings which can just as easily be achieved by underclocking with Afterburner
We're not sure where the issue is exactly.
They may lower power on certain shaders which may not affect FAH at all.

Vram size is no issue for FAH. It uses <2GB for large atom WUs, and usually closer to 500MB of VRAM.

I suspect that once they move over to much larger atoms, they might need to increase the window resolution in which the atom is simulated.
Then we might need a bit more VRAM.
MeeLee
Posts: 1375
Joined: Tue Feb 19, 2019 10:16 pm

Re: New RTX3xxx cards

Post by MeeLee »

ajm wrote:Slightly? Someone on reddit claims that he can avoid the crashes at 1850 MHz and 0.9 V. For FAH, I guess he'd have to go even lower than that...
I canceled my order.
It's very common for Nvidia GPUs to lower the boost clock depending on the load.
With FAH, or many other OpenCL computing tasks, making more than 90% use of the GPU, the GPU frequencies tend to dip, even at stock power settings.
However, the strange thing of it is, that a -200Mhz frequency drop of a ~2Ghz core clock, doesn't directly translate in a 10% PPD drop.
It'll more than likely result in <5% (<2% in some cases).
Because the memory and other parts of the GPU are still running at the same speed (including the PCIE data to the GPU).
ap1978
Posts: 18
Joined: Wed Nov 19, 2008 4:53 pm

Re: New RTX3xxx cards

Post by ap1978 »

Seems like the latest drivers fixes this for people. Without having to use Afterburner or update the vBIOS.
bruce
Posts: 20910
Joined: Thu Nov 29, 2007 10:13 pm
Location: So. Cal.

Re: New RTX3xxx cards

Post by bruce »

MeeLee wrote:Vram size is no issue for FAH. It uses <2GB for large atom WUs, and usually closer to 500MB of VRAM.

I suspect that once they move over to much larger atoms, they might need to increase the window resolution in which the atom is simulated.
"Simulated'? I think you're talking about the viewer, so maybe you mean "viewed"

The simulation runs in floating point numbers and has no window.
MeeLee
Posts: 1375
Joined: Tue Feb 19, 2019 10:16 pm

Re: New RTX3xxx cards

Post by MeeLee »

bruce wrote:
MeeLee wrote:Vram size is no issue for FAH. It uses <2GB for large atom WUs, and usually closer to 500MB of VRAM.

I suspect that once they move over to much larger atoms, they might need to increase the window resolution in which the atom is simulated.
"Simulated'? I think you're talking about the viewer, so maybe you mean "viewed"

The simulation runs in floating point numbers and has no window.
Makes sense!
That's why I said 'I suspect'.
But it's good that that comment is corrected.
Essentially the VRAM is dependent on atom count.

In Boinc they do have 'resolutions' they work with on some projects.
bruce
Posts: 20910
Joined: Thu Nov 29, 2007 10:13 pm
Location: So. Cal.

Re: New RTX3xxx cards

Post by bruce »

Yes, VRAM depends on atom-count. If the protein has N atoms, then you enough VRAM to store the coordinates and other characteristics of each of those atoms. If the entire protein fits in a box that can be X by Y by Z and the viewer should display everything that is in that box, but the viewer is optional since the computed location of each atom is the same whether or not the viewer is used.
Foxter
Posts: 26
Joined: Sat Apr 18, 2020 2:45 pm

Re: New RTX3xxx cards

Post by Foxter »

Some RTX 3090 PPD/Temperatures/Power consumption from my team leader:

https://www.mygarage.ro/componente/2600 ... ost4358177

I would add the pictures here but I cannot find the add attachment button, maybe this is restricted because I am a new member?

As for the above post text:

3090 Msi Ventus. (no need for translation here)
In folding@home.70% power, tmax 75 ca si setari. (When folding at home. Settings: Power Limit set to 70%, Maximum temperature allowed set to 75 degrees Celcius)
ap1978
Posts: 18
Joined: Wed Nov 19, 2008 4:53 pm

Re: New RTX3xxx cards

Post by ap1978 »

Foxter wrote:Some RTX 3090 PPD/Temperatures/Power consumption from my team leader:

https://www.mygarage.ro/componente/2600 ... ost4358177

I would add the pictures here but I cannot find the add attachment button, maybe this is restricted because I am a new member?

As for the above post text:

3090 Msi Ventus. (no need for translation here)
In folding@home.70% power, tmax 75 ca si setari. (When folding at home. Settings: Power Limit set to 70%, Maximum temperature allowed set to 75 degrees Celcius)
Thanks for sharing! :)
Post Reply