Intel(R) G31/G33 Express Chipset not working as it should...

May 27, 2018
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I have a Desktop PC having following Specs :

OS : Windows 7 Ultimate SP1 64-bit ...........Fully Updated
CPU : Intel Pentium E5200
GPU : G31/G33
RAM : 2 GB


As far as I know my Total graphic memory is 256 MB but dedicated video memory 0 MB, no matter a game is running or not. GPU-Z is giving a correct realtime info about dedicated memory (70-120 MB while playing games) but what I think is Windows is not accepting that & always showing 0 MB.

Here is a self-explaining screenshot...
open


Game : Left 4 Dead 2 ( Highest Performance Settings )
FPS : 3 fps

OpenGL in Counter Strike 1.6 is also not working ( maybe that a clue )...

DirectX 11 Installed, however my GPU supports upto 9.1 only.
Latest Update of Integrated Graphics Installed ( Version 8.15.10.1930 )