Question Problems with Ryzen 7 5800x and ROG Strix X570-I Gaming Motherboard

[Toddie86]

Hi all, I'm trying to upgrade the CPU in my pc but running into issues. My current CPU is the Ryzen 5 3400G.

I wanted to get a better CPU and decided to go for the Ryzen 7 5800X which was the best compatible CPU I could get according to PC Part Picker. I also checked the AMD web page and it lists the motherboard as compatible too.

It says in order for the 5800X CPU to work I need to update the BIOS (I've done this and I'm running that latest version V5021).

Despite this though when the new CPU is in and the pc is turned on it doesn't display anything. I googled solutions and general advice was to try jumping the CMOS to reset the BIOS ( tried this) and I also tried removing the CMOS battery too which also didn't work.

Is there any other options I have left or is it possible Amazon have just sent me a dud CPU?

I've put my old CPU back in and everything else is still working so not sure what else to do beyond get a refund.

Any advice would be appreciated.

 

[helpstar]

Your old CPU has an integrated GPU, the new CPU does not. The motherboard´s video ports are not functioning with this new CPU.
You will need to install a dedicated GPU to get a monitor running with it.

 

[punkncat]

In order to help against just stumbling around in the dark with guesses (like the really good one above) please list all the PC components including the power supply.

 

[Toddie86]

In order to help against just stumbling around in the dark with guesses (like the really good one above) please list all the PC components including the power supply.

Motherboard:
ROG Strix X570-I Gaming Mini ITX

CPU:
Ryzen 7 5800X

RAM:
Corsair Vengeance LPX 32 GB (1 x 16 GB) DDR4-2666 CL16 Memory

Boot Drive:

Crucial P3 Plus SSD 2TB M.2 NVMe PCIe Gen4​

GPU:
Gigabyte EAGLE Rev 2.0 GeForce RTX 3060 Ti LHR 8 GB Video Card

Case:
Silverstone RVZ03 Mini ITX Desktop Case

Power Supply:
Corsair SF600 (2018) 600 W 80+ Platinum Certified Fully Modular SFX Power Supply

 

[Toddie86]

In order to help against just stumbling around in the dark with guesses (like the really good one above) please list all the PC components including the power supply.

Thanks, I'm sure I did try it with the GPU connected but I may try this one more time before returning the CPU.

 

[punkncat]

It would be easiest point at the older PSU, but that is a quality unit and IIRC have a 10yr warranty on it.

I didn't look for your motherboard BIOS revisions, but was there any one of them that mentioned being a bridge BIOS or to install in a certain order?

If you put the old CPU in again, does it boot? Perhaps if so, you can take a moment to reset CMOS, boot again to be sure it comes up, then swap in the new CPU?
I know that isn't really a lot to go on and without a known working (other) rig to test with it becomes shooting in the dark.

 

[JayGau]

You say you have a RTX 3060. With your old CPU, do you have a display when your monitor is connected to the graphics card? (important to connect to the card itself, not the motherboard)

If you have the latest BIOS version and everything is working with the old CPU (when connected to the graphics card), then there's no reason the same system wouldn't work with the new CPU. You could check if the 5800x has any bended pins, or thermal paste on pins (happened to me several years ago and I managed to resurrect it by cleaning up the pins with a coffee filter and alcohol).

It's extremely rare that a brand new cpu is defective. You bought it new right? Sold and shipped by Amazon?

 

[Toddie86]

You say you have a RTX 3060. With your old CPU, do you have a display when your monitor is connected to the graphics card? (important to connect to the card itself, not the motherboard)

If you have the latest BIOS version and everything is working with the old CPU (when connected to the graphics card), then there's no reason the same system wouldn't work with the new CPU. You could check if the 5800x has any bended pins, or thermal paste on pins (happened to me several years ago and I managed to resurrect it by cleaning up the pins with a coffee filter and alcohol).

It's extremely rare that a brand new cpu is defective. You bought it new right? Sold and shipped by Amazon?

Thanks, yes I do have a 3060 and when connected to my monitor through the GPU and with the old CPU installed it works perfectly. I only have the issue when I put the new CPU in

I'll take a closer look at the new CPU and it's pins when I get up.

It was brand new sold and shipped by Amazon.

 

[Toddie86]

It would be easiest point at the older PSU, but that is a quality unit and IIRC have a 10yr warranty on it.

I didn't look for your motherboard BIOS revisions, but was there any one of them that mentioned being a bridge BIOS or to install in a certain order?

If you put the old CPU in again, does it boot? Perhaps if so, you can take a moment to reset CMOS, boot again to be sure it comes up, then swap in the new CPU?
I know that isn't really a lot to go on and without a known working (other) rig to test with it becomes shooting in the dark.

I'll check for a bridge BIOS update. As when I updated BIOS I just went for the latest version. I didn't think about needed to go for an older one first. That's a good shout.

The pc boots and runs as normal with the old CPU. No power supply issues or any other failing parts.