[SOLVED] PC not detecting hard drives

Dec 28, 2019
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Hello. I just built my PC 3 days ago. I had everything up and running great except my m.2 NVMe SSD. I did not put it in because I ordered a heatsink for it and waited for it to arrive to put it on. I figured I would transfer Windows 10 from HDD to the SSD via program. However, once putting in my NVMe drive, the bios wont detect my other hard drives. Windows 10 wont detect it either. Windows 10 is already installed onto the NVMe

Motherboard: Gigabyte B450 Aorus Elite
M.2 NVMe: Kingston (unsure of model)
Hard drive: WD 1TB (has all my previous stuff) and old seagate 500GB