WD3200AAKX runs at SATA II, not SATA III

[TonyPh12345]

Just because it’s SATA 3 doesn’t mean it’s going to be able to move data at that rate.

100MB is typical for that particular drive according to benchmarks I’m seeing online.

Check out this thread, in particular fzabkar’s analysis.

WD3200AAKX-001CA benchmark difference

Here are direct links to your images: http://i.imgur.com/kLo84.png http://i.imgur.com/j3P7j.png http://i.imgur.com/pu9Z4.png AISI, the “slow” WD drive and the Samsung drive both show the typical 2:1 ratio between the transfer rates at the outermost and innermost zones. This is to be expected since the diameter (and circumference) of the outer and inner tracks is in the same ratio. That is, the innermost zone has half as many bits per track as the outermost zone, and therefore half as many by…