I've done similar on a Supermicro X10SLL-F, though there is one hiccup. After the mod if the motherboard has anything connected to the PCIE slots, the motherboa

I've done similar on a Supermicro X10SLL-F, though there is one hiccup. After the mod if the motherboard has anything connected to the PCIE slots, the motherboard will boot itself up. So shutting down the machine in an emergency requires me to be there in person as it will just restart itself. Doh!