IDE not working with SATA connected

SO I'm building a computer. The motherboard is a winfast k6100, so I'm installing one IDE hard drive, a cd drive, and a SATA drive. so I have every hooked up and connected properly but when I turn on the computer only the SATA drive is recognized in the bios. When I unplug the sata connector and start it up both IDE devices show up. How can I fix this, thank you in advance.