Linux restarts/resets with no warning 20 seconds after starting job

Instance information:
Single workstation
Current cryoSPARC version: v4.4.1

$ uname -a && free -g
Linux nereus 5.15.0-105-generic #115-Ubuntu SMP Mon Apr 15 09:52:04 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
               total        used        free      shared  buff/cache   available
Mem:              62           9          27           0          25          52
Swap:             31           0          31

Worker environment:

CRYOSPARC_PATH=/home/cryosparcuser/cryosparc/cryosparc_worker/bin
PYTHONPATH=/home/cryosparcuser/cryosparc/cryosparc_worker
NUMBA_CUDA_INCLUDE_PATH=/home/cryosparcuser/cryosparc/cryosparc_worker/deps/anaconda/envs/cryosparc_worker_env/include
LD_LIBRARY_PATH=
PATH=/home/cryosparcuser/cryosparc/cryosparc_worker/bin:/home/cryosparcuser/cryosparc/cryosparc_worker/deps/anaconda/envs/cryosparc_worker_env/bin:/home/cryosparcuser/cryosparc/cryosparc_worker/deps/anaconda/condabin:/home/cryosparcuser/cryosparc/cryosparc_master/bin:/usr/local/IMOD/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/usr/local/IMOD/pythonLink
        libicudata.so.70 (libc6,x86-64) => /lib/x86_64-linux-gnu/libicudata.so.70
        libicudata.so.70 (ELF) => /lib/i386-linux-gnu/libicudata.so.70
        libicudata.so (libc6,x86-64) => /lib/x86_64-linux-gnu/libicudata.so
        libcudadebugger.so.1 (libc6,x86-64) => /lib/x86_64-linux-gnu/libcudadebugger.so.1
        libcuda.so.1 (libc6,x86-64) => /lib/x86_64-linux-gnu/libcuda.so.1
        libcuda.so.1 (libc6) => /lib/i386-linux-gnu/libcuda.so.1
        libcuda.so (libc6,x86-64) => /lib/x86_64-linux-gnu/libcuda.so
        libcuda.so (libc6) => /lib/i386-linux-gnu/libcuda.so
Linux nereus 5.15.0-105-generic #115-Ubuntu SMP Mon Apr 15 09:52:04 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
               total        used        free      shared  buff/cache   available
Mem:              62           9          27           0          25          52
Swap:             31           0          31
Wed Apr 24 11:58:13 2024
+---------------------------------------------------------------------------------------+
| NVIDIA-SMI 535.171.04             Driver Version: 535.171.04   CUDA Version: 12.2     |
|-----------------------------------------+----------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |         Memory-Usage | GPU-Util  Compute M. |
|                                         |                      |               MIG M. |
|=========================================+======================+======================|
|   0  NVIDIA GeForce RTX 3080        Off | 00000000:09:00.0  On |                  N/A |
|  0%   40C    P8              15W / 370W |    388MiB / 10240MiB |      0%      Default |
|                                         |                      |                  N/A |
+-----------------------------------------+----------------------+----------------------+

+---------------------------------------------------------------------------------------+
| Processes:                                                                            |
|  GPU   GI   CI        PID   Type   Process name                            GPU Memory |
|        ID   ID                                                             Usage      |
|=======================================================================================|
|    0   N/A  N/A      1333      G   /usr/lib/xorg/Xorg                          333MiB |
|    0   N/A  N/A      2483      G   xfwm4                                         4MiB |
|    0   N/A  N/A      2714      G   ...irefox/4090/usr/lib/firefox/firefox       38MiB |
+---------------------------------------------------------------------------------------+

Issue:
One of our researchers will start a job, it will run for between 5-30 seconds, and then with no warning, the system will reset. Nothing strange shows up in the logs – the screen just goes blank and the machine has restarted back to the BIOS with no warning.

I’m happy to provide any logs that folks feel would be relevant. It just seems like such a strange problem that maybe there’s some conventional wisdom about system hardware that’s more likely to give a promising result. We did already do a full multi-day memory test to confirm that the new RAM we installed is not the problem. Thank you in advance!