Intel X3100 Gpu Not Using 384mb graphics

I run a Lenovo thinkpad r61 15.4' laptop with 1,256mb ram and intel x3100 graphics which says it can support up to 384mb of video graphics. I have a question that i'm trying to get help on, my card only says 256mb. So I'm wondering if that due to having 1gb of ram in one slot and 256mb in the other slot. Is it just using ram from the 256mb slot ? So would taking the 256 out and falling back to 1gb ram improve the graphics ? I havent found any information on that issue and only know that having 2gb of ram can get the card to reach its prime. I just thought I'd ask, I've updated my card to the new driver and cant find any newer one that what I have already. Anyway thanks

No taking the 256 MB out won't help anything, and in fact will lower the available amount of video memory. Intel graphics (all the recent ones) use dynamic memory that uses a set amount to start and then goes up to a set limit based on the amount of system memory, the less system memory the lower the upper limit for video.

Ok thanks, I wasn't sure about that. I would guess from what you said, the graphics limit 384 would be seen with 2gb+ Ram ? My total memory now is 256mb with 1.25gb of Ram installed.