What is SVM(Secure Virutal Machine Mode) in Bios? What happens if it is disabled?
As already mentioned, its to do with virtualisation, if you use virtualisation its best to leave it enabled..!!
The 2nd part of your question... easy answer, absolutely nothing happens if it is disabled..!!
The way I set up my BIOS is if I don't use something, and its not needed by the system then I disable it..!!
Serial Port, Firewire, Secondary Storage Controller, Virtualisation, AMD Live!, ASUS Express Gate, etc, etc.... All disabled with me...!!
If I ever wanted to add a firewire device its no trouble to enter the BIOS and re-enable the setting, same thing with Virtualisatin, if you decide you want to try it at a later date, you can just enable it in the BIOS again...!!!
3DMark06 = 20717
/ 3DMark Vantage = P13618
/ My Overclock Guide
/ My Troubleshooting Guide