Built my First PC, No BIOS Display - Changing GPU Didn't Help

[Excessive3088]

Hey everyone,

I just finished building my first PC, but I’m running into a major issue. When I turn it on, I don’t get anything on the display – no BIOS screen, nothing.
At first, I thought my old GPU was the problem, so I went ahead and borrowed a friend's GPU. Unfortunately, even with a different GPU, I’m still not getting any display.
Here’s my setup:

• CPU: Ryzen 5 5600
• Motherboard: B550 AC UD
• RAM: Corsair 2x8GB (16GB)
• PSU: Corsair 650W
• Storage: WD 500GB SSD + WD 3TB HDD
• GPU: 1080 Ti and RX 6600 XT

I’ve double-checked all the connections and reseated the RAM and GPU, but still no luck. Anyone have any ideas on what could be causing this? Would really appreciate any advice or troubleshooting tips!

Thanks!

 

[JellyBeanQueen]

Have you used the right RAM slots? Check manual and make sure the slots are correct.

 

[gennie97]

Brooooooooo are you using the HDMI port on your motherboard? Dont do that!! Use the port on your GPU

 

[solitaryspark6381]

Make sure you’ve connected the CPU power pins. Then, check if your BIOS version is compatible with your CPU.

 

[carmela43]

Try removing the CMOS battery, wait a bit, and then put it back in. It might help reset things.

 

[maroon72]

Try using the 2nd and 4th slot RAM slots of your motherboard.

 

[ilysawanderlust]

Make sure the front panel power is connected properly to the motherboard. Update your BIOS, since newer SSDs can have issues with older boards. Also, try using a different display port or cable.