[Help] No POST no Dr. Debug

[prash3r]

Hello everyone,

i need some help regarding my home server build. System is brand new, never ran and is currently reduced to

• MoBo: ASRock X470D4U2-2T
• CPU: Ryzen 9 3900X
• RAM: 1x Crucial 16GB DDR4 PC4-21300 2666MHz ECC

I disconnected everything else, I can IPMI into the MoBo but even the remote power on failes. Fans start up as soon as i press Power button but thats all (they stay on until i kill PSU). And this concerns me: I cant even see a Dr. Debug code. The Dr. Debug stays blank. I tried to remove the CPU/RAM in hope i will get the debug code for CPU missing but it stays blank, never lights up. I did a BIOS update via IPMI, no changes. i removed RAM and switched it to another slot, no change. I am pretty shure i should have gotten some Debug code numbers by now.

 

Now i have some quick questions:

• shouldnt i get some codes on the segment display? Is my board broken for sure or should i keep trying?
• Can it be the CPU/RAM? It doesnt get that far since there is no Code right?
  • i have non ECC RAM (in my Desktop) i can try from my desktop ryzen 7 first gen
  • i have a ryzen 7 first gen RUNNING my Desktop should i try temporarily replacing the CPU to test?
  • same for power supply replacement.
• can it still be that the MoBo is grounded somehwere even when i have IPMI access? should i take the MoBo out of the case and try again?
• IPMI says power supply error but i think this is just the UPS connection not existent due to it being a server board with a desktop PSU. On the other hand i do miss a 12V value at sensors...
• Is there any information / diagnostics i can get from IPMI?

EDIT: and no output to VGA. My next step tomorrow will be taking the MoBo out of the case and try again. But this will be an act because of watercooling. Then i will try a different power supply i guess. But for now i probably go to sleep soon.

Thanks for the quick help, i will be grateful for any tipp or idea.

should i see more then these sensors?

 

Best Regards,

Prash3r

[Shimejii]

Your x470 Board NEEDS to be updated to run a 3900x. Bios Flash it to the latest bios and then try it

[prash3r]

yes, thanks i did that

[Shimejii]

19 minutes ago, prash3r said:

yes, thanks i did that

Did it fix the issue or you did that before and still getting these issues

[prash3r]

as you can read in my original post:

Quote

I did a BIOS update via IPMI, no changes.

i did it before (5 hours ago) but it didnt help.

 

EDIT: although i cant see the current bios version via IPMI, i might do it again the old fasioned way.

[prash3r]

Did BIOS update again - still no changes. Doesnt even list bios version in IPMI.

EDIT: Also BMC updated to current version 1.70. No changes as expected.

[prash3r]

pls someone just confirm that the MoBo is defective, so i can give it back to the vendor. And that it cant be anything else because i would get error codes.

 

Tried different Power supply and took it out of the case - no changes.

[Ryan C. Minnig]

I wanted to give my experience with this setup to help others out.

I was able to power and connect to the board thru the IPMI LAN interface.

The board would not POST and no indicators on Dr. DEBUG.

I was able to update from 1.40 to 1.70 for the BMS and from 3.20 to 3.30 for the BIOS thru the IPMI interace.

Initially I had a Ryzen 9 3900, but changed to a Ryzen 5 2500X because I thought there were issues with the BIOS on new processors - no change.

I changed memory slots from A1/B1 to A2/B2 - no change

I changed power supplies from my 4U case from a SuperMicro to a EVGA 650 gold - no change

I changed the DRAM4 from a Crucial CT16G4RFD8266 to a Kingston KSM26ED8/16ME (2 sticks of 16GB each) - BOOM, started POSTing and booted the UNRAID USB.