Family member has a Gateway machine which has a factory-installed AD-7200A with firmware 1.W2. Downloaded V1.09 from the Optiarc support site, and the flasher says "target not found". Have not yet tried PIO mode, but first I was able to dump the installed firmware with binflash. The internal ID string says "AD-7200A 1.W22008012900"
Are there real issues using generic firmware with OEM drives? The support site warns this.