Very nice, nightmorph.
Add the Software NCQ support to sata_nv.c for MCP51/MCP55/MCP61 SATA
controller. NCQ function is disable by default, you can enable it
with 'swncq=1'. NCQ will be turned off if the drive is Maxtor on
MCP51 or MCP55 rev 0xa2 platform.
Now I'm back to the problem that NVidia doesn't even publish a list of which MCH* is in which NForce*.
Which MCP does an NForce4 SLI chipset have?