I just the xenium gold solderless mod-chip also, and not only can you turn the mod-chip on and off, you can even designate different colored LED's (which glow from the chip itself) to represent which BIOS your are utilizing at the moment (Xenium, MS, EvoX, etc).
Teddy just please dont talk, just shutup. Upgrading your harddrive is nothing, it takes like 10 minutes at most.