Changes between Initial Version and Version 1 of Ticket #12, comment 3


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Timestamp:
Oct 17, 2011, 6:47:10 PM (13 years ago)
Author:
cjm
Comment:

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  • Ticket #12, comment 3

    initial v1  
    1 Regarding the missing BIOS option to enable AHCI: It's unlikely that OS2AHCI will be able to access the controller if the BIOS does not enable AHCI because the AHCI memory mapped registers might be missing.
     1Regarding the missing BIOS option to enable AHCI: It's unlikely that OS2AHCI will be able to access the controller if the BIOS does not enable AHCI because the AHCI memory-mapped registers might be missing.
    22
    33I said "might" be missing because even with AHCI enabled some ICH7 laptops (e.g. IBM and Dell) tend to drive the AHCI adapter in SATA mode at boot time. Yet OS2AHCI can see the memory-mapped AHCI registers and switch the controller between SATA and AHCI modes.