Walkthrough Computer doesn’t find bootable device.

[Irontrap12]

Hey I just had to replace my Motherboard, CPU, and RAM sticks and after booting up to the UEFI BIOS menu with all my hard drives plugged in. Ittells me there is no bootable device. (PS apologies for the terrible punctuation I suck at it)

 

[Lutfij]

Welcome to the forums, newcomer!

Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor: