From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wayne Sherman Subject: Re: AHCI support on Intel chipsets (confusion?) Date: Sat, 02 Dec 2006 02:48:29 -0800 Message-ID: <457159FD.4000804@SystemDesignWorks.com> References: <45715381.80206@SystemDesignWorks.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from ev1s-69-57-152-63.ev1servers.net ([69.57.152.63]:34727 "EHLO server.monsterhosting.org") by vger.kernel.org with ESMTP id S1759440AbWLBKsd (ORCPT ); Sat, 2 Dec 2006 05:48:33 -0500 In-Reply-To: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Leon Woestenberg Cc: jgarzik@pobox.com, linux-ide@vger.kernel.org Leon, Thanks for the reply. I have enabled SATA Enhanced mode, but still did not see any mention of AHCI in my dmesg output. I also did not find a setting for AHCI in the BIOS. My board is a Gigabyte: http://www.gigabyte.com.tw/Products/Motherboard/Products_Spec.aspx?&ProductID=2304 I was about to email GigaByte and ask them about AHCI, but I decided to do a search first. That is when I found the Intel page that says ICH7 does not support AHCI. If that is so, then I need a different motherboard. Can you confirm that ICH7 does not support AHCI? Thanks, Wayne Leon Woestenberg wrote: > Wayne, > > On 12/2/06, Wayne Sherman wrote: >> Jeff Garzik, >> ... >> my decision on the kernel source code. It seems to indicate the Intel >> ICH7 is AHCI compatible: >> > We (yesterday) found out that our board (a Supermicro PDSMI+, ICH7 as > well) needs the proper BIOS setting in order for it to appear as a > AHCI capable controller. > > Precisely, we found if we enabled "SATA Enhanced Mode", then enabled > "AHCI" in the BIOS, the chipset identifies itself as a 0x27c1 device > rather than a 0x27c0 device. > > This is probably exactly the issue you ran into. Try your BIOS settings. > > Regards, > > Leon Woestenberg. >