No Speed Increase after AHCI patch on Win 7

[ldstern]

I successfully installed AHCI driver on my 2006 Mac Pro running 64 bit Windows 7. I re-ran the Windows Performance Eval after the AHCI update. Interestingly, my disk score did not change: 5.9 prior to the update and the same after the update. My boot Win 7 drive is a 300gig Velociraptor drive (the drive is dedicated to Win 7).

Can someone tell me why the disk score did not improve. I thought that changing from IDE to AHCI would lead to a substantial improvement.

Thanks for a response.

 

[Cindori]

what slot do you have the drive in?

 

[ldstern]

In slot 3. I just moved it to slot 2, re-ran performance index. Result was the same: 5.9 disk drive rating.

 

[nanofrog]

5.9 seems to be consistent with what I've been seeing with faster SATA drives, so I don't think you'll get a higher score.

 

[MacVidCards]

What did you want, an 11?

5.9 is the max on Windows squirrely scale.

Next time try a read/write speed check before & after.

16 SSDs in a Raid would also score a 5.9.

 

[gugucom]

This thread is basically repeating the posting of the Howto AHCI thread.

https://forums.macrumors.com/posts/8743217/

 

[nanofrog]

5.9 is the max on Windows squirrely scale.

Next time try a read/write speed check before & after.

16 SSDs in a Raid would also score a 5.9.

Yep. RAID won't change anything as to the score, when a single drive can achieve a 5.9.

Testing drive througputs give a much better picture (AJA Speed Test for example).