Question Hardware issue B550 mb

[Dales_Bells]

Howdy, I’ve tried everything I can think of but I’m just at a loss. I took out my gpu to clean it, when I put it back it the cpu light came on and my computer would not post. The first thing I thought was that I broke my card but when I tried it with another card, it still stayed on.

I tried each ram slot individually

I reseated the cpu

I cleared the CMOS over night

I made sure all of the connections were secure

When I tried with an older cpu, it worked. So I thought it was obviously my cpu. Somehow I fried it while I was removing my gpu. But, as a one last test, I decided to try my cpu in another computer and it worked just fine. My cpu just doesn’t want to work with my specific motherboard. I’ve never encountered anything like this and any help would be appreciated.

Edit:
CPU: Ryzen 9 5900x
CPU cooler: ARCTIC Liquid Freezer III Pro 360
Motherboard: MSI MAG B550 Tomahawk - 7C91vAH
Ram: 32gb 3600mhz
SSD/HDD: 1tb WD NVME
GPU: RTX 3080 Ti FE
PSU: EVGA 1000 G5 - 3 years old
OS: Windows 11 Pro

 

[Lutfij]

Welcome to the forums, newcomer!

Specs: Ryzen 9 5900x Rtx 3080 ti MSI B550 Tomahawk
When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time.

Have you checked to see the power connector is completely seat in it's housing?

 

[Dales_Bells]

Welcome to the forums, newcomer!

Specs: Ryzen 9 5900x Rtx 3080 ti MSI B550 Tomahawk
When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time.

Have you checked to see the power connector is completely seat in it's housing?

Yep. I made sure all connections were secure.