So I bought a new parts for my new system. But the Deepcool Captain EX didn't quite fit my MSI x370 PRO CARBON. So I just put my old i5 2500K system in and then sell the Captain EX. All went well but I forgot to plug in the SATA data cables. So I grabbed some SATA cables and I put them in. Now my PC won't post. So I took it apart just put the bare minimum in. My CPU, one stick of RAM, a GPU because my motherboard doesn't have a video output port. It booted to my surprise but just to make me feel worse the GPU debug light came on. I have cleared the BIOS but nothing is happening I will upload a video in a bit