AHCI Patsburg SATA controller and slow transfer speed

Mark Johnston markjdb at gmail.com
Thu Jun 27 21:33:08 UTC 2013


On Thu, Jun 27, 2013 at 5:21 PM, Dave Hayes <dave at jetcafe.org> wrote:
> Greetings all. I'm on FreeBSD 9.1-STABLE #0 r251391M. I'm noticing two of my
> SATA disks are at half speed. Is this normal or is there some configuration
> I'm forgetting?

In my experience it's fairly common to have a mix of 6Gb/s and 3Gb/s ports.

In particular, see: http://en.wikipedia.org/wiki/Intel_X79#Features


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