System powers off

Accelerated Computing DGX Spark / GB10 User Forum DGX Spark / GB10
1

Hello NVIDIA Support Team,

I’m reaching out regarding our NVIDIA DGX Spark that is experiencing a persistent shutdown issue during OS boot.

System Info:

  • Product: NVIDIA DGX Spark

  • AMI BIOS Version: 2.25

  • BIOS Date: 12/25/2025

Issue:
The system powers off every time the OS kernel attempts to load. This occurs consistently — the system does not reboot/restart, it fully shuts down.

What We’ve Already Tried:

  1. Accessed GRUB recovery menu → ran fsck (filesystem check) and dpkg (package repair) — both completed, but system still powered off on resume

  2. Created bootable USB recovery drive (BOOTME) using the official CreateUSBKeyMacOS.sh script from the DGX Spark recovery image (usbimg.customer)

  3. Booted from USB → firmware update (FNMP console update) completed successfully

  4. Booted from USB again → selected “Install / Factory Reset” → installation completed successfully, message confirmed “Installation complete”

  5. Removed USB → selected “DGX OS” from GRUB menu → NVIDIA logo appears, begins loading, then system powers off completely

  6. Disabled Fast Boot in BIOS — no change

  7. Let system cool down and retried — same result

Observations:

  • BIOS works normally (can navigate all settings)

  • GRUB boot menu appears (DGX OS, Advanced Options, UEFI Firmware)

  • System only powers off when the OS kernel starts loading (GPU/CPU ramp up)

  • Shutdown is abrupt — no error message displayed

  • This suggests a possible thermal protection trigger or power supply issue under load

What We Need:

  1. Guidance on additional troubleshooting steps

  2. Whether this indicates a hardware issue (thermal/PSU) requiring service

  3. If there are BIOS-level diagnostics we can run to confirm

3

Please inspect your power supply for any damage. Also, please tell me the reported firmware versions in your BIOS.