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Date: Thu, 29 Jul 2010 20:29:37 -0600 (MDT)
From: Warren Block <wblock@wonkity.com>
To: questions@freebsd.org
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Subject: AHCI and Gigabyte GA-G31M-ES2L
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The Gigabyte GA-G31M-ES2L has an ICH7, one PATA port, and four SATA 
ports.  This one now has the latest BIOS, F10.

Is it possible to run AHCI on this motherboard and chipset?

With FreeBSD 8-stable, the terrible BIOS set to "Enhanced" mode, one 
SATA drive connected, and ahci_load="YES" in loader.conf, an ada disk 
device does not appear.

Is AHCI too much to ask from a G31/ICH7 motherboard, or is it just this 
particular motherboard?