Tjese look better for sure after changing to AHCI.
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CrystalDiskMark 3.0 x64 (C) 2007-2010 hiyohiyo
                           Crystal Dew World : 
http://crystalmark.info/-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
           Sequential Read :   213.617 MB/s
          Sequential Write :   143.072 MB/s
         Random Read 512KB :   203.827 MB/s
        Random Write 512KB :   143.019 MB/s
    Random Read 4KB (QD=1) :    20.358 MB/s [  4970.1 IOPS]
   Random Write 4KB (QD=1) :    57.377 MB/s [ 14008.0 IOPS]
   Random Read 4KB (QD=32) :   138.198 MB/s [ 33739.8 IOPS]
  Random Write 4KB (QD=32) :   109.515 MB/s [ 26737.1 IOPS]
  Test : 500 MB [C: 43.8% (49.0/111.7 GB)] (x3)
  Date : 2010/12/08 18:59:40
    OS : Windows 7  [6.1 Build 7600] (x64)