On 12/14/09, Doug Barton <dougb_at_freebsd.org> wrote: > b. f. wrote: >> Hmm. From what little I know, your chipset should support AHCI, so >> perhaps your motherboard or bios isn't set up right?: >> >> p. 39, 44 of the pdf at: >> >> http://www.intel.com/design/chipsets/datashts/307013.htm > > On page 44 it says, "for some features, hardware support in the SATA > device ..." > I believe what they meant in the Intel document was that in order to use certain features supported by AHCI, such as NCQ, the disk drive must also support them. Your disk drive seems to support NCQ. > pass0: <Hitachi HTS721010G9SA00 MCZOC10H> ATA-7 SATA 1.x device > pass0: 100.000MB/s transfers (UDMA5, PIO size 8192bytes) ... > Perhaps it does not have the requisite "hardware support" for ahci? This is the disk drive. AHCI is for host controllers: http://www.intel.com/technology/serialata/ahci.htm So this does not seem to explain why ahci(4) fails to attach to your SATA controller. I suspect that your bios or motherboard fails to use AHCI mode. Maybe there is a later bios revision, or some jumper settings on the board that will allow it to be enabled. You may have to talk to the manufacturer. Of course, there is a small chance that there is a problem with our drivers. Have you tried a live CD of a Linux distro, to see AHCI works with another OS? b.Received on Mon Dec 14 2009 - 07:13:13 UTC
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