On my Gigabyte GA-Z68XP-UD4 motherboard I have the following devices on SATA ports:
0_SATA3 SSD Samsung 850 Pro 512GB Sata3 - System C:
1_SATA3 SSD SanDisk Ultra II 240GB Sata3 - Render F:
2_SATA2
3_SATA2 HDD WD 20EVDS 2TB Sata2 - Clients D:
4_SATA2
5_SATA2 Blu-ray LG BH10LS30 - H:
6_GSATA3 HDD WD 20EZRX 2TB Sata3 - Backup G:
7_GSATA3 SSD Samsung 860 EVO 2TB Sata3 - My E:
Ports 0-5 are supported by Intel Z68 and ports 6-7 by the Marvell controller.
Lutfij, using Intel's Rapid Storage Technology application can actually check the specific SATA port numbers of the connected devices. But this application can only display SATA devices that are controlled by the Intel Z68 controller. Unfortunately, this application does not display SATA devices controlled by an additional Marvell controller. You can see it on the screenshot I have attached.
USAFRet, numbers "
Disk 0, 1, 2, 3, 4" in Disk Management unfortunately do not match the numbers of SATA ports. You can see it on the screenshot I have attached.