B650 Tomahawk Wifi - Reboot loop, no POST after installing video card

G

garymani15d202ec

New member
Joined
May 10, 2025
Messages
2
This is a new build. With integrated graphics, system boots fine, installed Windows, flashed latest BIOS. Installed known good XFX RX6750XT taken from my previous system. Powered on, lights and fans run. No video from any source. After several seconds the system reboots. Repeat. I removed the video card and the system boots normally. Note: I did have the video card installed in a vertical slot with the adapter that came with my Hyte Y70 case. I have not tweaked anything in the BIOS. Only one debugging LED lights up on boot. Yellow, I think. I'm posting this on the new system booted with integrated graphics. I did not disable integrated graphics with the video card installed.

B650 Tomahawk Wifi
AMD Ryzen 9 9900X
Latest BIOS
EVGA 1300G+ PSU
64gb G. Skill DDR5-6000
2tb Samsung 990 Pro SSD
Windows 11 Pro
 
Sort by date Sort by votes
I think I found the problem. The BIOS apparently no longer supports AMD video cards older than the RX9000 series. If I want to run the Ryzen 9, I need to upgrade my GPU.
 
Upvote 0 Downvote
Back
Top