SATA controller boot problem

hello.. I have a Samsung 80 GB SATA HDD on a Sil 3112A controller. the motherboard is Asus A7n8x-E Deluxe. i had on this HDD both Win XP Prof and Fedora Core 4. when I tried to install Win, because of Fedora, I couldn't. using Partition Magic 8.05 I formatted the Fedora Partitions and then tried to install Win. but after this operation the SATA won't boot anymore. I can't boot any SATA HDD on my computer but my HDD is ok on another computer. I can use the HDD but as a secondary device, not the one to boot. I did a reset on the system BIOS, I deleted the MBR and made again the partitions, I did many formats on the HDD using different tools, including fdisk, but nothing worked. i'm sure the problem is with the controller. maybe anyone knows a solution. thank you