NitroPC crashes with Seagate Portable 4 TB USB drives

degard · September 17, 2026, 1:42am

Hi all,

My NitroPC immediately shuts down when I connect a bus-powered Seagate Portable 4 TB hard drive while the computer is running.
And if the drive is already connected when I switch on the NitroPC, the computer does not boot normally either.

I reproduced the problem with three different new drives from the same Seagate product family. It occurs on both front and rear USB ports.

After the failure, the power LED is very dim, StartOS and SSH are unreachable, and the computer can only be recovered by disconnecting it completely from mains power. A USB-connected HP SSD S700 1 TB works normally on the same NitroPC. The Seagate drives also work on another Debian computer. And since the failure occurs both during operation and before the operating system can boot, a purely StartOS-specific operating system cause appears unlikely.

System:

NitroPC1
Operating system: StartOS 0.4.0.1, a Debian-based Linux server operating system
Seagate model: STGX4000400

I will not perform further crash tests because the uncontrolled shutdown risks filesystem damage.

**Is this a known NitroPC problem? Could the startup current of bus-powered mechanical hard drives trigger a protection circuit? Which external 4 TB drives are known to work, and would a powered USB hub be a safe solution?

Thanks ahead!**

ion · September 21, 2026, 8:41am

That’s a very strange error indeed. I would not connect it again in the meantime either, if it holds data. If you do connect it again, you can start sudo dmesg -w right before plugging it in. It should show errors that may be helpful to understand what is happening. Save the results and share them here or with support directly.

I looked up Seagate’s spec sheet for it and they clearly state it may be used without external power supply. Note any USB interface does have standardised maximum power supply specifications. The kernel may limit it though, which is something raspberry Pi do. What should then happen is the kernel negotiating slower speeds with the external device.

nku · September 22, 2026, 4:05am

Big drives can draw a short power spike when they spin up. You can get USB cables that take power from two ports, which can help make things more stable. A powered USB hub should work too.
Also worth keeping in mind: USB ports are sometimes already connected through an internal hub and may share power with other devices, like a webcam or Wi‑Fi adapter. No idea how the NitroPC is wired internally, though.