What was installed in my m1330 was the ST9200420AS which does not appear to be the model with the Free Fall Protection Sensor.  See the Note: below as taken from Seagate product manual.  I've contacted Dell Tech Suppport and have requested a replacement drive to correct drive as advertised when I placed my order for this machine.   Might want to check your machines for same?

 

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http://www.seagate.com/staticfiles/support/disc/manuals/notebook/momentus/7200.2/100451238d.pdf 

 

2.13.1 Free Fall Protection feature

The Free Fall Protection feature provides enhanced data protection against shock events that may occur while the drive is operating. This feature is designed to decrease the likelihood of data loss by detecting a free fall event  and unloading the actuator before a shock takes place in falls of >8 inches (nominal). 

 

The drive uses a 0 G sensor mounted on the printed circuit board assembly (PCBA) to sense this event.

 

To enable the Free Fall Protection feature on ST9200420ASG, ST9160823ASG and ST980813ASG models,
use Set Features command 41h. To disable this feature, use Set Features command C1h.
Information about Free Fall Events that have occurred are available through SMART Attribute FEh.

 

Note. The Free Fall Protection Feature is provided only on ST9200420ASG, ST9160823ASG and
ST980813ASG models.

 

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