"Laptop graphics cards are usually built directly into the motherboard and cannot be upgraded with the exception of a few that have a MXM interface - Sort of like PCI Express for laptops.
I have searched a few databases and I cannot find your laptop listed which I believe means that it cannot be upgraded.
Here is a guide to tell if yours can, but it requires some work that could void your warranty!
Also, a way to tell is often to look at the model line - if you see other laptops that are very similar but have different display adapters, it usually means that it is swappable - for example, if there is a Thinkpad T400b."
"My Lenovo Thinkpad T400 has a total of three Mini PCI-e Ports. Only one is used when I bought it.
I currently am using a Radeon HD card and it is possible, but to avoid conflicts you need to set the PCI-e card as default in BIOS and disable on board."
