Actually I didn't get an answer from my previous post. That's why I am asking it again.
Stay with your previous post. Your question has been answered there.
This message was posted on behalf of Intel Corporation
In regard to your inquiry, it seems to be there is no option or setting to increase the dedicated video memory form the BIOS, but as an option you can always get in contact with the manufacturer of the board in order to verify if there is another option to do that.
Any questions, please let me know.