HA Yellow not starting when SSD inserted

Hi everyone,

I just purchased Home Assistant Yellow PoE kit + Raspberry CM4 (8GB RAM/32GB eMMC) + 1TB SSD Samsung 970 Evo Plus.

After assembling all parts together, system was not able to boot and on Home Assistant were blinking red and green LEDs. After I removed SSD, system booted normally and I was able to install system from USB flash disk and run Home Assistant without problem. As soon as I plug-in 1TB SSD again, system stops working and both red and green LEDs are blinking. When I remove it again, it works OK.

I tried as well another 1TB SSD Samsung 980 PRO and it behaves a bit differently. It starts booting, but very soon, after loading kernel, it restarts regularly.

Any idea what could be wrong before I claim the HA Yellow unit as probably faulty?

Thank you for your feedbacks