SSD Caddy not supported?

[MArkusVater]

Tech Specs:

• AMD A10-9600P@ 2.40GHz
• RADEON R5
• 8.0 GB RAM DD4 (2*4 GB)
• RADEON R7
• 1 TB HDD
• Windows 10 x64
• IDE ATA/ATAPI-Controler: AMD-SATA-Controler
• Samsung V-NAND SSD 850 EVO (250GB)
• BIOS was updated at 15.05.17

I wanna use instead of the slow and loud DVD Drive a fast and quite SSD.

So I removed the optical Drive and connected the SSD

but neither Windows nor GPartedLive is able to find the SSD.

Together with a fellow student I have checked all my components (SSD, caddy, SATA Controler).

I connect the SSD via USB and was able to boot.

[Huffer · Accepted solution]

The connection for the optical drive is a special animal. Nominally it is a SATA port but it is usually a downclocked SATA bus since an optical drive works as well as it is going to work with a SATA-I connection. I generally tell folks not to put an SSD in an optical drive caddy; put the SSD inside the laptop so it can be the bootdisk and then put the legacy hardware in the optical drive bay. 

See p. 50 of the Manual here:

Service Manual

[MArkusVater]

Yeah man that works.
AWESOME

[Huffer]

Indeed. And so others can follow along when they have the same problem please mark it as the "Solution".