I put the map on a Gigabyte motherboard GA-EX58-UD4P. She was 8 64bit limited under Windows run. All other disks in the PC were no longer recognized. The system was very slow (rather quickly). It lacked any documentation. Even on the Internet, hardly anyone knew this product so you could find no evidence to correct any errors during the installation. The map has some jumper why and how they are configured, remained the secret of CSL. The card is indeed inexpensive. But what good is it if it is not usable. So I sent it back to CSL. Incidentally CSL hotline was easy to reach, but could not help. I almost think it's not advisable to try to upgrade a SATA2 motherboard deart.