Bios Mods -The Best BIOS Update and Modification Source

I have an older gateway NV53-2285 with a pheonix bios. I would like to be able to adjust to video ram to 512 instead of 256, along with any other tabs that might be helpful. I'll post a backup file of the bios with this post. Thanks.

Bump. I'm looking for the same and hoping someone can help out. Thanks for your time.