Acoustic Management .. enable or not?


#1

Hello folks … I’ve just noticed (purely by accident!) that my main drive has ‘Acoustic Management’ but it is not enabled!

It’s a WD 5000AAKS SATA which I have partitioned into C,D and E with Windows 7 x64 as my OS.  I also have a second drive in the machine which is a WD 2500BB IDE which is also partitioned into 3 … this drive has ‘AM’ enabled. I also use a Buffalo external drive , this holds a Samsung Spinpoint F1 which also has ‘AM’ enabled.

Simple question therefore … should I enable ‘AM’ in my main drive , or leave it alone?

It seems to be running quite happily at the moment … what are the pros and cons of this feature??

Thanks for any advice!


#2

AIUI, Automatic Acoustic Management (AAM) reduces seek noise by reducing the aggressiveness of the acceleration and deceleration profiles for the voice coil servo. This may result in a slight performance penalty. You may be able to see this in before-and-after HD Tune benchmarks.

http://www.hdtune.com/

I can’t find any Western DIgital white papers on AAM. However, here are two competitor’s documents:

http://www.seagate.com/docs/pdf/whitepaper/sound_barrier.pdf
http://www.hitachigst.com/tech/techlib.nsf/techdocs/EBB67181ACB207C586256D340075B4DF/$file/WP_PowerAcoustic_25March.pdf

Here is a Wikipedia article:
http://en.wikipedia.org/wiki/Automatic_acoustic_management


#3

Thanks for the reply fzabkar! … some useful info in there …

I also found this post which seems to suggest that an install of win 7 actually changes the AM settings … presumably to fit in with it’s power settings.  I had no idea Windows could do that , but I suppose it makes sense!

http://www.overclockers.com/forums/showthread.php?p=6439219

I think I’ll leave the settings alone for now … unless anyone else on here has some more info for us.