SIS 651 chip set, ata problem

2003-10-20 Thread Peter Spekreijse
Hi!

We're trying to install FreeBSD 4.9/RC on a system with a
Asus P4S533-MX board (SIS 651 chipset). This does not work
with UDMA enabled. Is this problem known? Is there a work-around?

Greetings,

Peter.
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Re: SIS 651 chip set, ata problem

2003-10-20 Thread Torfinn Ingolfsen
On Mon, 20 Oct 2003 20:29:50 +0200 (CEST)
Peter Spekreijse [EMAIL PROTECTED] wrote:

 Hi!
 
 We're trying to install FreeBSD 4.9/RC on a system with a
 Asus P4S533-MX board (SIS 651 chipset). This does not work
 with UDMA enabled. Is this problem known? Is there a work-around?

Yes, this problem is known (PR-43345). Unfortunately, it is not very
easily fixed under 4-stable (I believe -current already has a fix for
this) according to the people who are experts on the ATA code.

Workaround, here is my experience:
http://geekinfo.net/article.php?story=20021229152603904

Basically, if your BIOS allows you to turn off ultra-dma, you will get
FreeBSD installed. The patch described in PR-43345 works for me, but
YMMV, because I use a 20G ATA66 hard drive.

Hope this helps a bit.
-- 
Torfinn Ingolfsen,
Norway


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