Your array is fake hardware RAID. It's not software RAID in the sense that it's RAID from inside the OS (which would actually be more portable) and it's certainly not hardware RAID in the sense that it doesn't have a dedicated XOR processor or a physically separate controller card.
Since both are ICH10 variations, you MAY be able to boot it if you reconstruct the array in the RAID BIOS, but don't reinitialize it. Make sure you have a good backup before doing this.