Date: Thu, 08 Sep 2005 13:50:32 +0200 From: "O. Hartmann" <ohartman@mail.uni-mainz.de> To: =?ISO-8859-1?Q?Malachi_de_=C6lfweald?= <malachid@gmail.com> Cc: freebsd-questions@freebsd.org, freebsd-amd64@freebsd.org Subject: Re: nForce4-SLI, AHCI and NCQ and FreeBSD 6.0 Message-ID: <43202588.9030903@mail.uni-mainz.de> In-Reply-To: <c090347a050906070821e844d7@mail.gmail.com> References: <431D90E1.1030105@mail.uni-mainz.de> <c090347a050906070821e844d7@mail.gmail.com>
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Hello. Are you really sure the onboard Sil SATA controller supports SATA II? When I studied the handbook of both motherboards, the A8N-SLI Deluxe and A8N-SLI Premium I found both motherboards are idetically equipted with the *not* SATA II capable SilI3114 SATA controller. By the way, as I know, the second SATA controller is attached via the PCI32 bus, not via PCIe! That means (in my opinion) there is no benefit using this controller. It is more a marketing GAG than a serious add-on. RAID5 performance of ICH7R and SilI is said to be very, very poor (about 10 MB/s read/write performance), so what benefit I do have using this controller with it's senseless 'capabilities' and non-PCIe attachment? This is only a thought based on my personal available informations and maybe wrong ... Oliver Malachi de Ælfweald wrote: > I have noticed the same thing with the onboard Silicon Image controller. > I am using the A8N-SLI Premium. I am using the Silicon Image controller > instead of the nForce4 controller because it specifically said SATAII > and said it supported RAID5 (whereas the nForce did not support RAID5). > However, on boot it recognizes it as SATA150 (which should be SATA300). > > Malachi > > On 9/6/05, *O. Hartmann* <ohartman@mail.uni-mainz.de > <mailto:ohartman@mail.uni-mainz.de>> wrote: > > Hello. > I have a little question about the popular nForce4-SLI chipset for the > Socket 939 platform. The onboard SATA controller of the nForce4-SLI > chipset claims to be NCQ (or SATA II) capable, but nVidia implemented > this feature in a not-AHCI-standardised way, but as an own solution. My > question is: Is the FBSD 6.X driver for the nForce4-SLI chipset capable > of using NCQ (as I know, the driver has to enable NCQ and it's not done > automatically by the harddrive-controller interaction). > > Thanks in advance, > Oliver > _______________________________________________ > freebsd-questions@freebsd.org <mailto:freebsd-questions@freebsd.org> > mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org > <mailto:freebsd-questions-unsubscribe@freebsd.org>" > >
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