Question Not booting/no display from monitor and no power from keyboard/mouse

[tpa84]

Has : New Gigabyte B550 Gaming V2 motherboard

New AMD RYZEN 5 5500 GPU

New Super Flower 750 watt PSU

New G Skill RipJaws DDR4 Ram

Old GPU in which cant identify

Motherboard and CPU fans power on however, there is no display on the monitor/keyboard and mouse not functioning. The keyboard and mouse blinks a light initially when powered on and then does not function. I did do a reset with CMOS battery in and out, with one ram card in each slot and this was a no go. Ram card was seated properly. Is this a GPU compatibility issue in which is causing no display (no BIOS boot up) and keyboard/mouse not functioning?? Should replacing a new GPU may possibly resolve this issue?? Thank You!!

 

[Ralston18]

Did you use only the cables that came with the PSU?

This motherboard?

https://download.gigabyte.com/FileL...e_1301.pdf?v=6617483eb8e82bc3abb5488599d792ec

Confirm that I found the applicable User Manual

Read and review the entire manual.

Then work through the User Manual step by step to double check all connections and related configuration settings.

Check: 1) that the connections are corect and, 2) that connectors are fully and firmly in place.

 

[cirdecus]

I'd certainly test with a different GPU and maybe a wired keyboard and mouse.