I have an ASUS A8N motherboard (nForce 4 AMD); yesterday I successfully installed and booted 98SE by using RAM Limitation Patch (my computer has 2 GB of RAM), no acpi, and real mode (a.k.a. 16-bit, bios) disk access. (Just for completeness, my system also has a nvidia 6600GT, which works perfectly using tweaked drivers. The network card is detected and I have a working driver for it, but I can't install MS-TCP -- more on that on a later post). Windows is installed on a 4 GB primary partition just at the start of a 200 GB disk (which is connected to my SATA2 port). If I try to switch to ESDI_506/protected mode drivers, 98SE hangs at startup -- ctrl+alt+delete does not work, but the logo.sys animation does. A second or so before hanging it spins up the floppy motor for a moment -- but I think that's usual behavior with the ESDI driver. I tried LLXX's patched LBA48 ESDI_506.pdr, but It fails at exactly the same point. Bootlog.txt's last lines: [0012CC87] Initing esdi_506.pdr [0012CC88] Init Success esdi_506.pdr [0012CC88] Initing esdi_506.pdr Unfortunately, no ios.log is generated I think I've tried everything I know... and no luck so far. So, does anyone know if ESDI_506 works on nForce 4 with SATA enabled?