Hello,

if I read correctly on the nvidia site, resizable bar support requires a 10th / 11th gen intel cpu ( and corresponding chipset ).

Somehow I'm not too optimist that xeons fit the bill ( happy to be proved wrong anyway )

Normally I would agree, however EVGA added it to their "SR-3 Dark" Motherboard.  Which leads me to believe the C621 chipset and newer LGA3647 CPU's can handle it too.

oh, nice motherboard... looks having more bells and whistles than what we got in the 7820/7920 ( especially those 10gb ports )

Anyone know what Dell version of BIOS with mainboard support resizable bar or not?

Anyone know if Precision Tower 5820 have resizable bar? Would like to use them for CUDA GPUDirect programming with NVMe drives.

DELL only provide resizable bar support on alienware serial only so far.......

updated : I got a T3640 and T3650, 

T3640 is not support resizable bar and confirmed by Dell already.....

but T3650 after BIOS updated, it have resizable option for selection in BIOS screen.

but T3650 is using W580 chipset and 11gen CPU

You guys can try update BIOS first, and please do remember you have to update the GPU BIOS as well.

Yes, I can enabled to resizable bar on T3650 with BIOS ver 1.14.0

NVIDIA GeForce RTX 3080 Firmware Update Utility, May 28, 2021
Precision 3640/3650/5820/7820/7920

Fixes & Enhancements

Is there any way at all to get resizable bar on dell 7920 with NVIDIA 3090 Graphics.  

If Games computers can run resizable bar, then why not workstations? if other motherboard running c621 chipset can do it then why not dell;  They are clearly working on the bios, because the did a update in October 2025; how hard can it be to add this simple feature.  I am aware of the xCuri0/ReBarUEFI mod; but i don't want to go messing about with my bois; unless I am given no other choice, because dell wont future-proof their workstations with a fix that has already been tried and tested and proved to work!