Windows 10 isn't always kind to new devices and hard drives. After a lot of work I finally managed to read two rack hard drives with this SATA controller. It would probably be better to start with a freshly formatted and blank hard drive on another system, or just use new and unformatted drives. Then use Windows Disk Management to format the drives. I suggest installing the card first, booting it up and seeing if it boots correctly in Windows. Then experiment with adding drives or other SATA devices. On my system, a new SATA driver screen appears after the BIOS splash screen. If you have disks installed on the card and the screen pauses for a very long time, there may be an error reading the disks correctly. The SATA display driver screen should only appear for a few seconds, if at all, and then boot into Windows. Much luck. Some people will be able to get started right away, others will take a while to figure things out, like me. It's just down to luck how your hardware and Windows handle the new card.
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