Hey there, LordNyxx.
Sorry to hear about the issues you're experiencing with your drive. :\
The good thing here is that at least there's no important data on it. So I'd recommend that you give it a go with your other build as well, to see if it's recognized properly. If it is, you could download DLG (Data Lifeguard) and run both tests (Quick and Extended), to see if there's anything alarming: How to test a drive for problems using Data Lifeguard Diagnostics for Windows
Please let me know how everything goes.