I set up my new PC build yesterday, but now I'm getting no display output when I try to start it. I enabled secure boot on my Gigabyte B550 AORUS ELITE AX V2 motherboard (I know, it's for Valorant, and honestly, it might not be worth the hassle). Even after I reset the settings without saving, I'm still seeing no output. I took out the CMOS battery overnight while unplugged and pressed the Q flash button, but that didn't help either. I also switched from DisplayPort to HDMI and am about to unplug and replug all the graphics card cables. Does anyone have any other suggestions? Here are my full specs: Gigabyte B550 AORUS ELITE AX V2 motherboard, AMD Ryzen 5 5600X, Corsair Vengeance RGB Pro 16 GB RAM, Crucial P3 Plus 1 TB SSD, Gigabyte WINDFORCE OC SFF GeForce RTX 5070, MSI MAG FORGE 112R case, and MSI MAG A750GL PSU.
1 Answer
Have you checked if CSM is disabled? That could be an issue, especially with secure boot enabled. If your graphics card isn’t super old, it might need CSM to run properly. If it’s disabled, you might be stuck without a display. Try resetting the BIOS again, but ensure CSM is enabled this time.

Thanks for the tip! I just added my specs to the post. I didn’t think CSM support would be affected, but it sounds like it might be the problem. How do I enable it again?