Where does a SATA3 go in my motherboard SATA slots?

Solution
It seems like only red ports are SATA3 on this motherboard, and orange is SATA2. Which means, you would need to connect SSD to red port. I would move DVD to orange slot (SATA2 has enough bandwidth) to make place for SSD.


See number 11?

pd023705_system_board_01.ashx


That's where it goes.

https://support.lenovo.com/us/en/solutions/pd023705
 
It seems like only red ports are SATA3 on this motherboard, and orange is SATA2. Which means, you would need to connect SSD to red port. I would move DVD to orange slot (SATA2 has enough bandwidth) to make place for SSD.
 
Solution