Disabling onboard vga on Acer Aspire m610

[lordgaspode]

can anyone tell me how to diable the onboard graphics chip on an acer Aspire M1610 as i have installed a new graphics card but my primary graphics controller is still listed as an SIS mirage 3+?

 

[lordgaspode]

yeah im not an idiot, there is no option to disable vga in bios