I'm using a Dell Dimension 4600 to test the Consumer Preview of Windows 8 (Yes, I know it's a dinosaur).  The Consumer Preview is working fine. However, the Release Preview will not install. I suspect it is because the BIOS is too old. (The version that is currently installed is S12.)  Are there any moves afoot to upgrade the BIOS and expose the NX / XD bit in the BIOS security settings?

 

Or, is there a work around to enable installation of Windows 8 Release Preview on this level of machine?

Thanks