Would like to upgrade, but the graphics card is PCIe 3.0 and the motherboard is PCIe 2.0 (I think).
EDIT: Finally found the following in the motherboard manual: "(All PCI Express x16 slots conform to PCI Express 3.0 standard.)
* To support PCI Express 3.0, you must install an Intel 22nm CPU"
So the motherboard *should* be good.