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* <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> 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
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