My computer's second hard drive is showing a 3rd slave and master error, but sometimes it's showing in Bios and sometimes in the device manager, but not showing. Why? - Quora
![hard drive - What is the purpose of this 4-pin interface on SATA HDDs and why doesn't it exist on SSDs? - Super User hard drive - What is the purpose of this 4-pin interface on SATA HDDs and why doesn't it exist on SSDs? - Super User](https://i.stack.imgur.com/oZYUu.png)
hard drive - What is the purpose of this 4-pin interface on SATA HDDs and why doesn't it exist on SSDs? - Super User
![HP and Compaq Desktop PCs - Jumper Settings for the Installation of Hard Disks and CD, CDRW, and DVD Drives | HP® Customer Support HP and Compaq Desktop PCs - Jumper Settings for the Installation of Hard Disks and CD, CDRW, and DVD Drives | HP® Customer Support](https://support.hp.com/doc-images/446/c01390386.jpg)