I wanted to make use of my old IDE disk drives, so I bought a controller card from eBay that featured 1 IDE slot and 3 SATA slots. If I connect the DVD drive and the CD drive, only the CD drive works. If I connect the DVD drive on its own it works fine, regardless of whether it uses the master or slave end. Both drive are set to cable select. I have the VIA driver for the card.
MSI 970 Gaming Motherboard
Diamond Data IDE CD drive
LG CD/DVD IDE drive
Windows 7 Professional SP1 64-bit
The seller specifies that it allows for 2 IDE drives, but does not allow RAID or booting from drives connected to the card. Interesting considering that I thought this card was designed specifically for RAID, not that it matters to me.