Upgrade graphic card on VGN-SZ3XP/C

[younggamer]

Hello i have a SZ3 notebook with an nvidia 7400 and i was thinking in upgrading my graphic card soon, may be to a nvidia 8400 or to a ATI Mobility Radeon HD 2600. Can anyone tell me if i can do that in this notebook.
Thanks alot

[seb21__]

Sorry, but it is not possible to upgrade the graphic chip in a notebook.