Hard Drive Not Booting With PSU

Tentasquid

Prominent
Jun 19, 2017
30
0
530
I recently got a new PSU in my computer (same amount of power) and now whenever I try to use my computer I get the message “Reboot and select proper Boot Device or Insert Boot Media in selected Boot device and press a key” so I went to the BIOS to see if my hard drive was recognized in there and it was not. Please help me.