Problem with GTX1660 card is it drivers or windows or hardware.
It will not boot into windows 7 64bit with only hdmi plugged in. Not sure if it is a driver problem or a fault with the card or if it's windows 7 64 bit or my AMD 970 PCIE x 16 3.0 Motherboard.
Have tried last 3 drivers and upgraded the bios on my 2 year old motherboard and it only booted into windows once. It will not wake from sleep with hdmi.
It cause my machines UEFI Bios to reboot multiple times.
The boot process is 3 times longer.
Even with the HDMI cable not plugged in it doesn't get to the windows login because it does not play the sound at the login.
It's absolutely insane. THE fastest graphics card I have ever used. Runs Fortnite 1080p MAX settings at 170fps. Can play games at very high settings while streaming at 1080p60 in most cases, sometimes lower bitrates.