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Posts: 17
Registered: ‎12-16-2012
Location: Bucharest
Views: 674

T420s HDD on Caddy weird behaviour

Hello all,


I have a T420s and I have mounted a WD 760 GB Scorpio Black @ 7200rpm in a Caddy. The drive is recognised, everything is ok, except one thing: from time to time (at a freqency of 10 to 30 minute) the hdd enters in sleep mode (I can hear the sound of hdd heads retracting) just for a moment.

I wonder if this is normal, becuase I have never had a hdd in a caddy and I know that the hdd is working perfectly.


The laptop is powered by a 65wats power adapter and stays in a docking station.


Can anyone help me on this?

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