Motherboard of dell Inspiron 3847 Desktop-PC, – Base, Windows 8.1 (64 Bit): pcie 1.0, 2.0 or 3.0?

Hey,

for christmas i want to upgrade my viedo card from gt 705 to gtx 1050 ti. But before i need to know if the motherboard has a pcie x16 1.0, 2.0 or 3.0 slot. does anyone know it?

regards