I recently had my power supply fail taking with it the motherboard and cpu. I have reinstalled all of these retired components but when I go to load up my PC, I am stuck in grub rescue. Previously, I had both linux and windows on the PC.

I loaded a live copy of Linux mint using a USB and followed the instructions here: https://help.ubuntu.com/community/Boot-Repair

The pastebin associated with the attempt to fix grub is here: https://paste.ubuntu.com/p/Hf2SfVxBNf/
Attempting to fix grub did not change anything and I am still just stuck in grub rescue.

Any ideas of how to fix this would be greatly appreciated.