T400 does not have switchable graphics in the bios

[dwp]

So if no option in bios to switch between graphics, then my model did not come with switchable graphics ? T400 7417TNU T9400

 

[Magafox]

Is it a laptop?

 

[jaguarskx]

That particular ThinkPad T400 model does not have a Radeon HD 3470 discrete graphics chip, it only uses the Intel GMA X4500HD graphics core.