This is an issue that has been discussed many times. Try the IDE EMULATION in the bios and hope.
Otherwise get a power supply adapter and install a floppy drive.
Or install a current OS.
I have a new motherboard model MSI 770-G45 (it's 2010 model). I also have a SATA hard drive. I want to install Windows XP on the SATA harddrive. The SATA HDD is detected by the motherboard bios. I heard to install Windows XP on SATA you need a Floppy Disk drive and press F6. But I don't have any Floppy Drive (the power supply does not have the connector).
Will Windows XP detect my SATA hard drive?