Hi again, sumdumgaiGA!
Good thing that you have the SSD connected to the other controller. I don't think that the speed difference will be noticeable even if you put it in the Intel SATA ports. Since all the ports on your mobo are SATA III (6 Gb/s) and you're not incorporating the SSD in any RAID configuration, the ASMedia controller will do the job as well.
How is it performing now, though? Have you done any benchmark tests? (
http://www.tomshardware.co.uk/answers/id-1926483/ssd-diagnostic-tools.html )
However, I believe that you should swap the HDD connected to SATA6G_1 and put it next to the SSD (which preferably should be connected to SATA6G_E1) and put the data drive in SATA6G_E2. While moving the CDDVD drive 2 to the Intel ports, next to the CDDVD drive 1. This way you could enable RAID on the Intel controller and configure a healthy RAID 1 array, without it affecting the data HDD or the SSD.
I hope I wasn't too confusing, but it's probably best to consult your motherboard manufacturer's customer support.
Unfortunately, I don't have access to a similar motherboard (to yours) at the moment, to test my suggestion. So if anybody else from the community can give you a better advice on the storage configuration, I encourage them to do so.
Hope I was helpful, though. Keep me posted.
SuperSoph_WD