I'm sure many of guys have read about the unique HP Blackbird running ATI Crossfire on a Nvidia SLI mobo. It's unique coz Crossfire does not work on SLI mobos but HP has a special BIOS which allows it. I had NBTD n decided to do this just now. I just flashed my Striker Extreme with the HP VooDoo Blackbird BIOS. Everything works perfectly after the flash. I can now choose to run my rig with SLI or Crossfire. As u can see in this pic, the startup screen is no longer the Asus ROG screen. It's now replaced by the HP logo. Screenshots of Nvidia Console with System Information showing the motherboard to be a Striker-HP. CPUz shows it with BIOS 5.05 Disclaimer: Dont blame me if ur rather expensive mobo dies on u during the flash. U do it at ur own risk.