[request] Gateway NV55C Unlocked BIOS

Hey guys! I just got this laptop and I want to increase the amount of video memory available. It is said that it scales with the RAM but it's greyed out in BIOS. Anything possible?

Insyde 1.30 BIOS Link: http://global-download.gateway.com/GDFil...Y&SC=PA_6G

Thank you.