Problem with Mac Mini Dual Hard Drive Kit

Hello!

Sorry for my english..

I bought your Mac Mini Dual Hard Drive Kit.

After first connection, it worked fine!

I plugged the HDD (Apple default - Toshiba 500Gb) in your SATA cable. According to Apple SATA cable I have connected a new SSD OCZ VERTEX 120Gb and installed Mac OS X Lion.

A week later, HDD suddenly switched off and the OS does not see it in Disk Utility.

I made ​​out and reconnected, restart, and again it worked! But then again, at system startup, MAc loading for a long time, and the drive was not visible too.

I then changed the cable, HDD with data and SDD with the OS.

OS has booted, but sometimes it freezes for 3-5 minutes....

In the end, I disabled the second HDDdisk - I think that your SATA cable does not work stability

How can you help me?