First, Welcome to CD Freaks.
You’re motherboard seems to be based on a VIA chipset, including the much maligned VIA VT8237 southbridge. In general, this southbridge [which controls the SATA for the whole motherboard] is pretty incompatible with SATA drives.
However, I’d suggest trying out ImgBurn to see if the drive will be detected properly as a burner there. You don’t have to actually burn anything yet; just download it and see if the Optiarc is listed as a writer.
If it is, try to reinstall Nero. If it is not listed as a writer, try updating your BIOS for the motherboard, or update the VIA chipset drivers, possibly using the stock, generic Microsoft drivers. [Reminder that I mean to update the drivers of the SATA controller, not of the optical disc drive.]
If neither of those steps solves your problem, thoroughly check your BIOS settings for anything that could be related to the drive possibly being treated as a RAID hard drive or such. If you find any entries like that, change them to “legacy”, “IDE”, “JBOD”, “non-RAID”, or the like, depending on what the entry may look like.
If, after all this, you still cannot get your drive to work, I’d suggest purchasing a PATA optical drive and making it master to your AOpen drive.