There is no issue with editing the xorg.conf or Xwrapper.config files. I would make backup copies just in case.
The coolbits tweak is a long-standing solution for fan and clock control.
The need to edit permissions to allow the user to control settings only came about just recently in the later kernels with their intentions to lock down just about everything to only system and never let the user have any control over anything anymore. IMHO, they taken things much too far and made the OS much less usable to the local average user.
The Xwrapper.config edit needs changes to add:
allowed_users=anybody
needs_root_rights=yes
Save the file and reboot or logoff and log back in to reload the Display Manager.
It turned out that this is all that was needed to keep the display connected to the on-board graphics and enable fan control through the nvidia-settings GUI. The nvidia-xconfig options that Tom M suggested caused me to lose use of on-board graphics, so I had to delete the /etc/X11/xorg.conf file that the nvidia-xconfig command created to get them back.
Ideas are not fixed, nor should they be; we live in model-dependent reality.
How many rtx 3080 ti's could you run on a dual evga 1600 watt PSU system? It almost certainly has to be 10 or fewer if the gpus are power limited to 300 watts. Leaving just a smidge to run the CPU/motherboard.
So that would leave you with 3 psu's if you want to run 12 or more rtx 3080 ti's.
Why does this begin to feel like "industrial level" issues :)
Tom M
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)
How many rtx 3080 ti's could you run on a dual evga 1600 watt PSU system? It almost certainly has to be 10 or fewer if the gpus are power limited to 300 watts. Leaving just a smidge to run the CPU/motherboard.
So that would leave you with 3 psu's if you want to run 12 or more rtx 3080 ti's.
Why does this begin to feel like "industrial level" issues :)
Tom, to clarify for your sake, Ian is referring to the 2 x 1600W PSU as each one having a total of 9 PCIe wired connectors, or 18 total for both PSUs. I can only assume the you figured @ 300W each, with 2 x 1600W PSUs, you divided 3200W by 300W and came up with 10 3080 Ti's. That is totally wrong.
Your 3080 Ti's should have the need for 3 PCIe connectors each, making 6 as the total amount of 3080 Ti's, not 10. No mater what power level you set them at, you still can only get 6 3080 Ti's. And with 3 x 1600W PSUs, that would still be only 9 3080 Ti's, not "12 or more".
Plus, I would think that your estimated power bill would be much higher than you could afford. But... it's your money!
This takes us back to the vga power jack discussions. Plus we are all assuming EVGA rtx 3080 ti ftw3 which have 3 8 pin top side power jacks.
Many rtx 3080 ti's have two topside power jacks including the EVGA xc3 model.
Another question is if you use two headed 8 pin power cables and distribute them so each jack head is on a neighbor's GPU you might be able to spread out the power peaks to allow 3 cables to run two three power jack GPU's instead of 6 cables?
Thank you for the discussion.
Tom M
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)
Another question is if you use two headed 8 pin power cables and distribute them so each jack head is on a neighbor's GPU you might be able to spread out the power peaks to allow 3 cables to run two three power jack GPU's instead of 6 cables?
Thank you for the discussion.
Even with the 2 x 8 pin PCIe connections, you will only get a total of 9 3080 Ti's, not 10.
Another question is if you use two headed 8 pin power cables and distribute them so each jack head is on a neighbor's GPU you might be able to spread out the power peaks to allow 3 cables to run two three power jack GPU's instead of 6 cables?
Thank you for the discussion.
Even with the 2 x 8 pin PCIe connections, you will only get a total of 9 3080 Ti's using 2 x 1600W PSUs, not 10.
Tom M
)
Tom, unless you intend to do only mining with this card, I wouldn't by it. Quote from Techpowerup:
"This device has no display connectivity, as it is not designed to have monitors connected to it."
Proud member of the Old Farts Association
Tom M
)
a resounding NO.
https://niconiconi.neocities.org/tech-notes/nvidia-cmp-170hx-review/
this rather in-depth review is for the 170HX, but from what I've read while researching this, the 90HX is locked down in a similar way.
locked to PCIe 1.0 x4
performance limiters for general compute loads
don't do it.
_________________________________________________________________________
Thank you, Ian& SteveC and
)
Thank you, Ian& SteveC and George.
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)
Keith Myers wrote: There is
)
It turned out that this is all that was needed to keep the display connected to the on-board graphics and enable fan control through the nvidia-settings GUI. The nvidia-xconfig options that Tom M suggested caused me to lose use of on-board graphics, so I had to delete the /etc/X11/xorg.conf file that the nvidia-xconfig command created to get them back.
Ideas are not fixed, nor should they be; we live in model-dependent reality.
How many rtx 3080 ti's could
)
How many rtx 3080 ti's could you run on a dual evga 1600 watt PSU system? It almost certainly has to be 10 or fewer if the gpus are power limited to 300 watts. Leaving just a smidge to run the CPU/motherboard.
So that would leave you with 3 psu's if you want to run 12 or more rtx 3080 ti's.
Why does this begin to feel like "industrial level" issues :)
Tom M
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)
I have 6 on my system now.
)
I have 6 on my system now. plenty of power overhead.
the bigger problem is number of PCIe connectors, especially with the GPU models requiring 3x 8-pin on each card.
_________________________________________________________________________
Tom M wrote:How many rtx
)
Tom, to clarify for your sake, Ian is referring to the 2 x 1600W PSU as each one having a total of 9 PCIe wired connectors, or 18 total for both PSUs. I can only assume the you figured @ 300W each, with 2 x 1600W PSUs, you divided 3200W by 300W and came up with 10 3080 Ti's. That is totally wrong.
Your 3080 Ti's should have the need for 3 PCIe connectors each, making 6 as the total amount of 3080 Ti's, not 10. No mater what power level you set them at, you still can only get 6 3080 Ti's. And with 3 x 1600W PSUs, that would still be only 9 3080 Ti's, not "12 or more".
Plus, I would think that your estimated power bill would be much higher than you could afford. But... it's your money!
Proud member of the Old Farts Association
Ian& SteveC, George,This
)
Ian& SteveC, George,
This takes us back to the vga power jack discussions. Plus we are all assuming EVGA rtx 3080 ti ftw3 which have 3 8 pin top side power jacks.
Many rtx 3080 ti's have two topside power jacks including the EVGA xc3 model.
Another question is if you use two headed 8 pin power cables and distribute them so each jack head is on a neighbor's GPU you might be able to spread out the power peaks to allow 3 cables to run two three power jack GPU's instead of 6 cables?
Thank you for the discussion.
Tom M
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)
Tom M wrote: Ian& SteveC,
)
Even with the 2 x 8 pin PCIe connections, you will only get a total of 9 3080 Ti's, not 10.
Your welcome.
Proud member of the Old Farts Association
Tom M wrote: Ian& SteveC,
)
Even with the 2 x 8 pin PCIe connections, you will only get a total of 9 3080 Ti's using 2 x 1600W PSUs, not 10.
Your welcome.
Proud member of the Old Farts Association