Your post leads with "Changing" then gives links to not a card but a notebook chip.
If we are changing, then tell the forum what video card you are removing so we can see if there is a detail we can use to see what size is required.
Let's say you lead with the wrong words and want to "Add" a video card. If so the PCIe x1 and x16 slots are where the new card goes. There is no changing here, just plug in a low profile video card and we are done.
Yes we have to watch out for the Watt usage and we might have to leave the case cover off to keep it cool.
Here's a card -> http://www.newegg.com/Product/Product.aspx?Item=N82E16814131338
Remember the PSU is only 220 Watts so no gamer will be happy here but this should not overtax the PSU.
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