Fedora Core could really support SATA
I am using a seagate SATA and Intel 848 chipset, all works very well
In the bios setting, change the IDE mode to "legacy mode" and turn on the support for both SATA&PATA( or PATA only) in order to let Fodera core find your HD during the installation
Then boot you machine and install Fedora Core.
After Fedora core is installed, you can change the IDE mode to "Native Mode"
Wish you a good luck.