Since the receiver only has HDMI inputs, if you want to connect from the PC through the receiver, you will need a DisplayPort to HDMI adapter, which is cheap and easily available.
If you want to connect the PC directly to the TV, you should be able to use a DisplayPort to DisplayPort cable and then send audio back to the receiver using ARC.
But, ARC audio does not support HD audio formats. So, this isn't the best route for best audio quality.
I would go from the PC to the receiver, then on to the TV.