Thoughts on Intel integrated ram share limit 1.67gb

Using a Toshiba laptop with no Bios option for video ram buffer limit.

1.67gb seems to be the limit. Couple things running I'm literally only using 16% of 16gbs.

I was in a configuration menu that showed the buffers address values to the shared ram but it does not look like it has an override.

Thoughts on any custom bios forceware or some hack to override the addressing of the buffer?

bios version is current no update in years...

All of my research on this indicates that this a Microsoft Windows limitation and there is nothing that you can do to change it.

Maybe somebody else will come in here with a nice tweak to share.