T61P HDD Fall Sensor

I have a T61P with a 160GB Seagate 7200RPM HDD. I want to upgrade to a 500GB drive and with some searching around it looks like I will be sticking with another Seagate 7200RPM. The only problem is I don't know if I should go with the version with the fall sensor or the one without it. I know my system has the Active Protection System which does basically the same thing. I have seen complaints of the HDD sensor screwing with Mac Laptops that have a similar motion detection system so should I double down in the protection or does anyone know if the extra HDD sensor will just end up giving me problems?

 

I think the question is whether the ThinkPads accelerometer is actually in the laptop itself permanently or whether it was just a feature that could only be used with HDD's that had the accelerometer. I think it is the former, so i would just get one without another accelerometer, since it may conflict with the built in ThinkPad.

 

The accelerometer lives on the motherboard, there are hdd that has built in accelerometer, but it is rare now, since most motherboard has that feature and would cause conflict in hardware.

 

Get the one without the free-fall sensor. When I was upgrading to a 320GB Seagate I searched the web with exactly the same question. It was a year ago and I don't remember whether I found some compatibility issues reports or not, but I do remember that I intentionally went for the one w/o free-fall sensor. I did so again few months ago while upgrading to a 500GB Seagate. Both work fine with the Lenovo's Airbag Protection (or was it IBM Hard Drive Active Protection System? ).

 

Most drives come with them nowadays. Must be a way to deactivate. With Seagate you don't have to worry about a drop KOing your drive. Seagate will clack clack clack then silent. lol.