Dell Studio 1745 (Mid 2009) - Manual (Page 46)

44
Using Your Studio Laptop
Free Fall Sensor
Free fall sensor protects your computer hard
drive from possible damage, by detecting a free
fall state caused by accidental laptop drops.
When a free fall state is detected, the hard
drive is placed in a safe state to protect against
damage to the read/write head and possible
data loss. Your hard drive returns to normal
operation, when the free fall state is no longer
detected.