The floppy you speak of has like 5 different options when selecting the driver.... and they all say Raid which I am not using.
That's the right floppy man. If you look when it says Press F6 it asks if you want to install 3rd party SCSI/RAID drivers....doesn't mention SATA but trust me this is what you need.
Use the Silicon image 3114 Drivers that I'm pretty sure should be on the disk cause I'm looking at mine and that's one of the 4 sets on there. You should use those
It's fine that it says Unknown CPU, that is completely normal unless you get a custom modded BIOS which I can show you where to get those too.
Your BIOS should have defaulted the CPU to 1.55 volts even though technically the chip can run fine off 1.35
Anywho, you shouldn't even need to raise the Voltage for you to simply change it from 133x13.5 to 200x9
It's the same speed, so it shouldn't need that bump yet.
What's the +12v Rail rated on that PSU?