I'm putting together a new build:Rog Strix Z490 - E / I9-10900K / GTX3*** (upon release) / Corsair HX850 I have 2 CPU cables, both 8 Pin (splitable into 2x4). The manual says you can hook up either the 8 pin or 8 + 4. I don't plan to do he...
Check the manual for your MB. The first section has a page about conncectors with shared bandwidth. M.2_1 and Sata 2 share bandwidth. Is it possible your using SATA 2? I'd suggest try using M.2_2 and leaving HDD in SATA 1/2 or you could just try...