Feizhou feizhou@graffiti.net wrote:
Eh? http://www.nvidia.com/object/IO_16450.html They specifically highlight NCQ on page 4 for their SATA implementation.
According to the SATA/libata status page: http://linux.yyz.us/sata/sata-status.html#nvidia
I guess they were talking about the MCP-03, instead of the newer MCP-04? In any case, I'm not getting NCQ support on my nForce4 serieschipsets under Windows. I guess some just don't include it?
Well, they are not talking about ATA...
ATA = SATA You can have NCQ on parallel ATA too. It's just a physical/datalink layer difference.
they are talking about SCSI like tag command queueing on their SATA side of things,
Between the drive and [software] host, individually. Then you use [software] host AHCI to control and schedule up to 32 drives.
My point is that it's still not a hardware-based host adapter. It's only the end-device component, with a software host.
you know, Native Command Queueing. No, not NForce 2 or 3 or 4 but Nforce 4 Ultra and above (Nforce4 SLI, Nforce Pro 2xxx)
Yeah, it seems the regular nForce 4 and at least the nForce 410 (not sure about the 430) don't have it.
Jeff does not get anything. He does not list Nvidia implementations of their SATA controllers as 'open' like
the
Intel AHCI and Silicon Image 3112 among others.
I stand corrected then. As I said, I heard 2nd hand.