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Disabling AAM = 25% decrease in access time

post #1 of 4
Thread Starter 
Hello guys.
I was bored and started looking around at stuff and came across this AAM thing.
Checked my HDDs and one of them (with older bios) had it disabled and the value was set at 254/254 while my other drives (another 2x AAKS 640gb and 1x 320gb) had it enabled with a value of 128/254.
Now, the drive that had 254/254 had an average access time of 12ms while the others had ~16.5ms.

I didn't use HDtune to change values because it didn't work.


I did it with HDDScan.



So, here are some tests:

LEFT: value at 128 _________________________ RIGHT: value at 254


Thats about a 27% improvement in access time (about 25% on my other drives who scored ~mid 16ms. )
Totally worth it!

I think this is a great way to improve your PC responsiveness, load time in games and such.
Edited by Cryptedvick - 12/22/10 at 11:15am
Animal Mother
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Animal Mother
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post #2 of 4
Interesting Waiting to see what others with more experience than myself have to say
2010 MBP 15"
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2010 MBP 15"
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post #3 of 4
AAM is Automatic Acoustic Management. Some drive manufacturers fiddle with the value resulting in slower performance but much less noise.
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LV-426
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post #4 of 4
Thread Starter 
Quote:
Originally Posted by PvtHudson View Post
AAM is Automatic Acoustic Management. Some drive manufacturers fiddle with the value resulting in slower performance but much less noise.
I know what AAM is. I know I gave the impression of not knowing by saying "this AAM thing".
I disagree with the last part of your post tho. I can't hear any difference in HDD noise even with all my fans at min.

I'm just showing a simple way to cut a few milliseconds off your HDD's access time.
Thats what makes SSDs so great. The 0.1ms access time.
Going from 16 to 12ms makes everything feel a little snappier.
Animal Mother
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Animal Mother
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