Hey there, masterxxxxxl.
Sorry to hear about the issues you're having with your drive. I'd suggest that you try the HDD with a different SATA port and cable, to see if the same thing happens. Make sure that you've connected the HDD properly. If nothing seems to change, you could try connecting it to a different computer, either externally (via a SATA to USB adapter, external enclosure or a docking station), or internally via a SATA connection, to see if the issue persists. If you connect it to a Windows computer, you could try testing the HDD for errors via DLG (Data Lifeguard Diagnostics):
How to test a drive for problems using Data Lifeguard Diagnostics for Windows.
I'd also recommend that you backup your most important data before you start those procedures, no matter how long it takes.
Hope that helps. Please let me know how everything goes.
Boogieman_WD