So I've a GTX 1080 g1 from gigabyte , i7 3770s with a Gigabyte GA-H61M-S2PV motherboard and a 500w power supply and sometimes while I'm playing games the display just turns off and i'm forced to hold the power button for 4 seconds and then it reboots like normal I believe it's a motherboard problem not getting enough power to gpu would I be right in saying that?