change shared system memory in vista

[tony929292]

hi guys have a question how do i change the shared system memory in vista for my video card

 

[mullered07]

you xcant, vista reports there is no shared system memory becauzse you have a graphics card with dedicated memory on it, if you had onboard it would show how much is shared, btw if you were to share your system mem with your graphics card ie: turbocache it wouldnt give you any perf boost as your system memory is a lot slower than your graphics card and you will get slowdowns when it starts to use system memory

 

[tony929292]

ok thanks but then what is this

 

[mullered07]

found this brief article:

Shared System Memory: This usually makes up the bulk of system memory available to the GPU and is “allocated” on demand when needed. Shared system memory is really just regular application VAD which are probe and locked and made visible to the GPU. VidMm will only allow up to N bytes to be pinned down simultaneously where N is: ((Total System Memory – 512)/2 – Dedicated System Memory)

looks like windows does allocate system memory to help the graphics subsystem but i imagine its not the same as having turbocache as thats crap and doesnt help performance, as for how to changed this i have no idea, only installed vista myself yesterday.