I just bought a Compaq Presario CQ5210F with the GeForce 6150 SE and would like to know, if I upgrade my 250watt power supply would my sims 3 game play better?
No. That is an integrated graphics chip. You need a discreet or seperate graphics card to really play any 3d games. You will almost certainly have to upgrade that power supply to add a seperate graphics card though.
If I upgrade the power supply will it help with the game play? I can play the game, it just lags a little and sometimes I can see the color fade or off color.