amd64/91195: FreeBSD 6.0(amd64) and Asus A8R-MVP

[Heeroy]

>Number:         91195
>Category:       amd64
>Synopsis:       FreeBSD 6.0(amd64) and Asus A8R-MVP
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-amd64
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Jan 02 04:30:08 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Heeroy
>Release:        FreeBSD 6.0 release
>Organization:
student 
>Environment:
CPU: Amd Athelon 64 3000+ (socket 939)
Motherboard: Asus A8R-MVP
>Description:
FreeBSD 6.0 does not full support ULI chipset M1575 in my new Motherboard: Asus A8R-MVP.

When I change my BIOS setting: On Board SATA Boot Rom to enable, my WD SATA 2 HD can not be found by FreeBSD

When I change the setting to disable: and
1. Change SATA mode selection to AHCI, FreeBSD can not detect my disk, too.
2. Change SATA mode selection to PATA, FreeBSD can detect my disk, but the transfer mode is DMA 33
>How-To-Repeat:
              
>Fix:
              
>Release-Note:
>Audit-Trail:
>Unformatted: