I bought an Odyssey X86J4105 with 64GB eMMC (and without the Windows license). First power on (original power supply) without any M.2 SSD attached went good - it booted into Windows 10. Then I unplugged the SBC from power, attached an NVMe SSD (PNY CS3030 1TB) to the PCIe x4 slot, plugged in to power and booted to a Linux live distribution from USB and the SBC booted fine and I could see the nvme0n1 device correctly. Then I unplugged it again from power, additionally attached a SATA M.2 SSD (Crucial MX300 M.2 1TB) to the SATA M.2 slot, plugged the SBC again to power and it did not power on anymore. I removed the SSDs, tried a different power supply - I cannot get the Odyssey board to power on again. The original power supply delivers the 12V and powers on another SBC that takes 12V, both the NVMe SSD and the SATA M.2 SSD work in another PC fine. The only thing I can see on the Odyssey board is that once I plugin the power supply and attach a network cable on either network jack, the orange LED on the RJ-45 jack lights up as long as the cable is connected and the greed LED blinks.
What’s up with the board? What can I do?
Please help - I have many SBCs since the Raspberry Pi 1(B) including several x86 SBCs (Lattepanda “original” and Alpha, Odroid-H2, Atomic Pi - also used M.2 SSDs and PCIe risers there, where applicable) but never had any problem like this.