>Number: 162367
>Category: kern
>Synopsis: SATA 3.0Gb/s not enabled on Nvidia nForce 430
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Nov 08 00:20:01 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator: Ronald F. Guilmette
>Release: FreeBSD 8.2-RELEASE amd64
>Organization:
entropy
>Environment:
8.2-RELEASE GENERIC amd64
Motherboard: Gigabyte GA-M55plus-S3G
(chipset Nvidia Gforce 6100 + Nvidia nForce 430)
Drive: Seagate ST3500320AS
>Description:
I just recently installed 8.2-RELEASE/amd64 on this system and looking
at dmesg output I noticed:
ad4: 476940MB <Seagate ST3500320AS SD1A> at ata2-master UDMA100 SATA
1.5Gb/s
I researched the drive (ST3500320AS) and found that it supports SATA
@ 3.0Gb/s. The motherboard allegedly does also. But as you can see,
I'm only getting 1.5Gb/s upon booting the system.
I did some googling around to try to find the cause of the problem,
and I found suggestions to enable AHCI in the BIOS, but apparently I
can't, in part because there is no such BIOS option, and also because,
apparently, the Nvidia nForce 430 doesn't actually support AHCI.
But the nForce 430 _does_ allegedly support SATA 3.0Gb/s... just not
via AHCI. So, you know, I'd like to know if there's a way for me to
enable the 3.0Gb/s support on this board. So far I haven't found any
way to do that.
Some potentially relevant links:
http://www.linuxquestions.org/questions/linux-hardware-18/help-getting-kernel-to-use-the-ahci-sata-driver-783508/
"The MCP61 is nForce 430, isn't it? This chip does not support AHCI."
http://forums.freebsd.org/archive/index.php/t-22186.html
http://www.wonkity.com/~wblock/docs/html/ahci.html
>How-To-Repeat:
I would imagine that just installing and booting 8.2-RELEASE/amd64 on
any motherboard with the Nvidia nForce 430 southbridge will exhibit
the problem.
>Fix:
Beats me! I just work here (and I don't do drivers).
>Release-Note:
>Audit-Trail:
>Unformatted:
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