Originally posted by turtile
Leave the RAM the way it is.
Your AGP Aperture should be 1/2 your total system memory (system RAM). Turn on Fastwrites unless problems occur.
The AGP Aperture should be set to the size of your video card's RAM. Setting it higher will not do anything for you. Setting it lower will (I THINK) limit the amount of video RAM available.
Fastwrites used to boost performance. However, now-a-days it can result in performance loss and cause a lot of problems. See which way works for you, but usually off will suit you better.
Basically, Fastwrites takes info from the CPU, and sends it directly to the GPU, skipping the system RAM all togethor. Without Fast writes, the CPU sends data to the RAM and then to the GPU (atleast that is my understanding, I may be wrong).
If you have an older card, you may benefit from Fastwrites. If you have a newer card, I'd leave it off.