No Speed Increase after AHCI patch on Win 7

Discussion in 'Mac Pro' started by ldstern, Nov 1, 2009.

  1. ldstern macrumors newbie

    Sep 6, 2006
    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.
  2. Cindori macrumors 68040


    Jan 17, 2008
  3. ldstern thread starter macrumors newbie

    Sep 6, 2006
    In slot 3. I just moved it to slot 2, re-ran performance index. Result was the same: 5.9 disk drive rating.
  4. nanofrog macrumors G4

    May 6, 2008
    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.
  5. MacVidCards Suspended

    Nov 17, 2008
    Hollywood, CA
    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.
  6. gugucom macrumors 68020


    May 21, 2009
    Munich, Germany
  7. nanofrog macrumors G4

    May 6, 2008
    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).

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