BIOS doesn't recognized all drives

[yonisade83]

I have a GIGABYTE EX58-EXTREME motherboard.
I have 2 SSDs and 4 SATA drives connected with SATA cables (along with a DVD-RW drive).

One SATA hard drive is not recognized when a specific SSD is connected.
If I disconnect that SSD, that SATA Drive is being recognized.
I tried switching SATA cables between them but alas.
I'm on AHCI mode (SATA 3 Native)

How can I make all of them live together in peace?

 

[yonisade83]

The solution was to connect both the SATA Drive and the SSD Drive to SATA2 ports on the motherboards, instead of a GSATA2 Port.