Your only options are to either add a SATA controller or purchase a replacement motherboard. Your warranty coverage was for three years from date of purchase of the board as a new product from a valid vendor.
Hope this answers it,
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Unfortunately the motherboard is end of interactive support; however you can try the following:
Remove the CMOS battery from the motherboard and unplug any component connected to the motherboard for at least an hour then plug the battery back and everything else, once that is done try to do a BIOS recovery with the latest BIOS version 2209
If that does not work I suggest taking N. Scott Pearson advice.