Problem external hard disk 2,5 inch in TBS MATRIX V2.1

[fhersete]

Hi, I purchased a few days TBS MATRIX v2.1 and I have some doubts as to the voltages of the usb connectors ago.

Has anyone connected an external hard drive 2,5 in usb 2.0. I performed the test but does not work, the engine does not turn hard drive makes a clicking sound !! click !! click !! click !!.

With an external hard drive with external power 3.5 if it works, but with a 2.5 inch does not work.

You know if that's normal?