Yea im useing a adapter card. could it be the card? when i bought the Samsung i bought another adapter card. (the new card had some good reviews on amazon) i might try and swap the adapters? also i swaped the nvme drive's pcie slots so i dont think its the MOBO but dont know. what do you think? also i red the reviews on the wd drive some people said the drived failed like 30 days in. what you think