CPU EZ Debug Light On When Using Ryzen 7

[MonkeyRocks23]

I recently purchased a new motherboard (MSI B550 Gaming Plus), yet upon reinstalling everything, I was met with the white EZ Debug led stuck in the “CPU” position (Attempting to use a Ryzen 7 5800x). My first thought was to flash the bios, yet even after updating to the most recent version, the led remains on and I am unable to post. I have tried switching to an older cpu (Ryzen 5 3400g), and that seems to allow me to boot into the bios and ultimately windows. Using this cpu, I have confirmed that the BIOS did indeed update successfully and should work with my Ryzen 7 5800x. I have tried absolutely everything from swapping the ram orientation, resetting cmos, different psu cables, checking connections, re-seating cpu, trying an older version of bios, etc. Additionally, I purchased a new Ryzen 7 5800XT going off the assumption that the cpu died, however this does not fix the issue. It is important to note that there is some thermal paste covering the cpu socket, but I doubt this would effect anything. Could there be an issue with the motherboard even though the Ryzen 5 works perfectly fine? Any suggestions help.

SPECS:

MSI B550 Gaming Plus (upgraded from Gigabyte GA A320m-s2h)

Ryzen 7 5800x cooled with Thermalright Peerless Assassin RGB

32gb Corsair Vengeance RGB pro

Zotac RTX 3070ti

Corsair RM850x modular power supply

[PeterOz]

Corsair RM850x modular power supply

Is this a Bronze or Gold ectara ectara?
The BIOS 7C56v Should work on the 5800x
or the BIOS 7C56v1H should work on the 5800XT
You Can Confirm here

I wonder if the power supply is not up to it.

The main difference I can see between the 5800’s and the 3400g is the wattage.
The 3400g is 65W
You Can Confirm Here
The 5800’s are 105W
You Can Confirm Here
Your GPU needs a 750W power supply
You Can Confirm Here

I will tag @phillpower2
To comment about the power supply

It is important to note that there is some thermal paste covering the cpu socket

You should think about
Get a can of contact cleaner and clean both the cpu pins and the motherboard socket. Spray the socket and let it sit for a min or two. Turn it upside down and let the liquid drain out. Let both parts dry completely and reassemble. (supplied by crjdriver @TSG)

[MonkeyRocks23]

Is this a Bronze or Gold ectara ectara?
The BIOS 7C56v Should work on the 5800x
or the BIOS 7C56v1H should work on the 5800XT
You Can Confirm here

I wonder if the power supply is not up to it.

The main difference I can see between the 5800’s and the 3400g is the wattage.
The 3400g is 65W
You Can Confirm Here
The 5800’s are 105W
You Can Confirm Here
Your GPU needs a 750W power supply
You Can Confirm Here

I will tag @phillpower2
To comment about the power supply

You should think about
Get a can of contact cleaner and clean both the cpu pins and the motherboard socket. Spray the socket and let it sit for a min or two. Turn it upside down and let the liquid drain out. Let both parts dry completely and reassemble. (supplied by crjdriver @TSG)

The power supply is an 80+ gold. I am currently using the latest bios version (7C56v1J3(Beta version)) although I have also tested the most recent non-beta version as well as a much older version of bios. None of this seems to work. I am very interested to see what the issue could be, as despite confirmation of a BIOS update, only an older generation cpu seems to work

[phillpower2]

It is important to note that there is some thermal paste covering the cpu socket, but I doubt this would effect anything.

Being that things work with an older gen CPU it is not the issue here but fwiw, it is not just important not to get thermal compound anywhere it is not intended to be it is vital not to being that it is a conductor and can brick not just the MB but everything attached to it when they all get shorted out.

A very good PSU that has adequate output and is still in warranty.

If you still have the Ryzen 5 3400g in the board can you do the below for us;

Download then run Speccy ( free ) and post the resultant url for us, details here, this will provide us with information about your computer hardware + any software that you have installed that may explain the present issue/s.

To publish a Speccy profile to the Web:

In Speccy, click File, and then click Publish Snapshot.

In the Publish Snapshot dialog box, click Yes to enable Speccy to proceed.

Speccy publishes the profile and displays a second Publish Snapshot. You can open the URL in your default browser, copy it to the clipboard, or close the dialog box.

[phillpower2]

Abandoned thread, closed.