Tesla K20 not detected by nvidia-smi

[carinellialessandro31]

OS: Ubuntu 20.04 fresh install.
GPU: NVIDIA Tesla K20m + Radeon R7 240 for graphical interface
$ lspci | grep NVIDIA
04:00.0 3D controller: NVIDIA Corporation GK110GL [Tesla K20m] (rev a1)
$ sudo lshw -c video
*-display
description: VGA compatible controller
product: Oland PRO [Radeon R7 240/340]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0
bus info: pci@0000:01:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
configuration: driver=radeon latency=0
resources: irq:32 memory:d0000000-dfffffff memory:f9dc0000-f9dfffff ioport:c000(size=256) memory:c0000-dffff
*-display
description: 3D controller
product: GK110GL [Tesla K20m]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:04:00.0
version: a1
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=nvidia latency=0
resources: irq:19 memory:fa000000-faffffff

$ nvidia-smi -L
No devices found.

Drivers installed with:
$ sudo apt install cuda-drivers-470
following CUDA installation guide for linux using package managers.

nvidia-bug-report.log.gz (106.7 KB)
Attached nvidia-bug-report

Please help, thanks in advance.

[generix]

The bios doesn’t provide enough resources for the K20. Since it’s really old, please check

• for a bios update
• whether the mainboard supports “Above 4G decoding”
• UEFI boot
  Then enable “Above 4G decoding”, disable CSM and reinstall Ubuntu in UEFI mode.

[carinellialessandro31]

Ok, I will try. Thanks.