Hello first time ere i bought my son a asus geforce gtx 1060 graphics card for his christmas.I installed it and at first it was working he checked a game to play and it was running smoothly.Then later he told me that his computer was restarting it self and then the screen was going blank but i was in bed so told him leave it and i would check it in the morning.So next day we switched it on and again it worked fine but later on it went blank and this time it stayed blank so i started looking for problems i updated the software,changed the cables even changed the power supply and still nothing but i did see on the screen it coming up saying hdmi instead of no signal any tips would be great thanks