"Anyways, something useful during the reverse engineering phase is always having the ability to pull out the BIOS ROM and stick your own in. Except on the X-BOX it ain't socketed. My recommendation is to install an Emulation Technologies S-TS-SM-040-A (if they don't have those in stock, the bigger sockets work too--I put a 48 pin socket on my board 'coz that's what I had on hand tonight). It's a pretty economical device, $12 or so and it goes right in the original footprint on the board."