It could be that the 600 watt PSU is slightly inadequate, better for a 720 watt PSU. You need to use paired modules of ram and not just one stick.
Sometimes the bios needs certain settings to be manually set like the date and time, the boot sequence priority, and whether the audio is "auto" or the PCIe video is enabled (rather than onboard).
It only runs the 1866 ram at "Native" setting.
previously, I actually running same spec with 1600 RAM porewred by 400W PSU. after upgrade to 1866 RAM, no post so I assume is PSU. I just bought this 600W PSU but issue still unresolved. based on my spec, 500W already enough.
Yes, I had provided the model of RAMs, both come with pair, not single RAM. I don't think wrong date/time or boot sequence can cause the issue although I already set it correctly. when I said no boot meant powered up but no response at all, no display and can't enter into BIOS too. I did removed the graphics card and already make sure 1866 RAM in setting in native.
Duo to limitation of AMD chipset spec, this model supports up to 1866 MHz for motherboards with a single DIMM per channel.