|Refer to the owners manual. You should have expansion slots on the mainboard. PCI is most common, but there are others. If you are unsure, an electronics shop should be able to assist. Without being able to look inside, we can not determine.|
Once the type of expansion slot is identified, then get a graphics card with the specifications you desire that works in that expansion slot.
iMedia (PT.U6L-PV.U6L) was what i found. The manual did not go into the hardware configuration.