The User Manual that comes with your Motherboard has instructions on how to flash the BIOS....did you by any chance happen to read it? if not, why not?
1. If you can boot into BIOS, hit F5 then F10. This will reset Motherboard Defaults and might help clear up any problems.
4. Go the the Tab marked "Boot" and disable Fast Boot, this will stop your USB devices from vanishing on you.
5. Is your video capture card a PCI model or PCIe model? if it's PCI, it's not compatible with PCIe slots.
6. Go to Control Panel, click on Hardware and choose Sound. Check properties are set to use the onboard sound and the correct amount of channels are set.
7. How on Earth do you have IDE HDD's connected to SATA ports?! the cables alone are incompatible.