From mboxrd@z Thu Jan 1 00:00:00 1970 From: Robert Hancock Subject: Re: Asus M2V-MX SE (VIA K8T890): SATA-II disk only detected as UDMA/100 Date: Thu, 23 Jun 2011 23:08:43 -0600 Message-ID: <4E041BDB.3090903@gmail.com> References: <1308508217.4141.20.camel@mattotaupa> <1308751011.16578.36.camel@mattotaupa> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-iw0-f174.google.com ([209.85.214.174]:48160 "EHLO mail-iw0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751501Ab1FXFIs (ORCPT ); Fri, 24 Jun 2011 01:08:48 -0400 Received: by iwn6 with SMTP id 6so2135363iwn.19 for ; Thu, 23 Jun 2011 22:08:46 -0700 (PDT) In-Reply-To: <1308751011.16578.36.camel@mattotaupa> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Paul Menzel Cc: linux-ide@vger.kernel.org On 06/22/2011 07:56 AM, Paul Menzel wrote: > Dear SATA subsystem folks, > > > please keep my address in CC list since I am not subscribed. > > This is a reply to my message to the coreboot list [1] and I am addin= g > more current information to it. > > > Am Sonntag, den 19.06.2011, 20:30 +0200 schrieb Paul Menzel: > > the ASUS M2V-MX SE HAS A VIA K8T890 chipset and the following BIOS > version is used. > >> $ sudo dmidecode >> [=E2=80=A6] >> # dmidecode 2.9 >> SMBIOS 2.4 present. >> 49 structures occupying 1801 bytes. >> Table at 0x000F0740. >> >> Handle 0x0000, DMI type 0, 24 bytes >> BIOS Information >> Vendor: American Megatrends Inc. >> Version: 0304 >> Release Date: 10/30/2007 >> Address: 0xF0000 >> Runtime Size: 64 kB >> ROM Size: 512 kB >> [=E2=80=A6] >> >> I had to replace my hard drive and bought a new SATA-II disk. >> Unfortunately the full speed is not detected. Instead of UDMA/133 =E2= =80=93 as >> was used with the old SATA-I disk =E2=80=93 it is reporting UDMA/100= =2E The UDMA speed doesn't really make a difference with a SATA drive. The=20 transfer speed is really controlled by the SATA link speed (1.5/3/6=20 Gbps). It only really matters if there is a PATA-SATA bridge somewhere.= =20 Some manufacturers never supported UDMA/133 so there's a behavior=20 difference between drives in that some indicate support and some don't.= =20 The transfer speed has to be set in most cases for compatibility reason= s=20 but it usually doesn't actually affect anything.