On an nForce4 board I would lean towards needing to load the sata drivers during install. Those drivers were never included in XP and Server 2003(WHS) is fairly similar as far as drivers go.
I never slipstreamed drivers for my WHS, used a floppy every time...just opened the case and had it dangling out for install, then removed it.
I've used F6 to load disk controller drivers in WHS. You actually have to load the drivers twice: Once in the "DOS-mode" install portion, and once in the "Windows-mode" install portion. If you don't do both, the WHS install won't work.You can't use F6 drivers in WHS, you must slipstream them. I know it presents the F6 option but it just doesn't work due to the way they customize server 2003 to make it into WHS, stop error 7B every time when I tried it.
I never messed with slipstreaming or floppies when installing WHS on an NF4 board. It worked just fine out of the box.
I've used F6 to load disk controller drivers in WHS. You actually have to load the drivers twice: Once in the "DOS-mode" install portion, and once in the "Windows-mode" install portion. If you don't do both, the WHS install won't work.
It's been a while since my last WHS install. There's a description of the process and the "F6" part in this article:I am a little hazy on the steps I went through where it would fail but I don't remember even getting to the windows mode install portion step where you can load drivers.
I have a DFI Lanparty NF4 board running WHS. No drivers needed for the nVidia SATA connections, but I did need them for the onboard Silicon Image SATA controller.