Firstly, thanks to anyone who can help me to solve this issue!
The problem is that I have a vt6421a sata/raid card that can boot by itself the hdd connected to it. So, I need to patch the bios of on old pcchip (sis 740 810D) motherboard.
I tried with mmtool 3.19 mod but I got an error saying "Error loading ROM image (1007FFh)". Then after some search on google I found that using mmtool 2 I can bypass that error and open up the bios for my mother board, but then I encountered another problem, after any kind of procedure the program just crash and I can't patch the motherboard bios with the pci bios.
Can anybody help me with this? Here is the full list of files that I got, includes: motherboard bios, pci bios, mmtool 2 and 3.
All the files: http://www.megaupload.com/?d=UAY0YFLP
The vendor ID of 1106h and device ID of 3249h for the pci card