No reason at all. I usually do ASUS SLIC 2.1 on the ASUS boards unless some wants something different. For the Gigabytes I usually use the DELL SLIC 2.1. It really doesn't matter as long as the correct certificatre is used to Activ*te Win 7. One of my personal PC's is a Sony Vaio with an ASUS board and I used the HP SLIC 2.1 because when I did it there was no Sony or ASUS SLIC 2.1 available.