its corsair vs550Yes it can support 1660 Super but make sure you have updated to the latest UEFI BIOS of your motherboard.
GDDR6 does not play a role to the compatibility.
What is the exact make and model of your PSU? If you don't know, open the case and take a look at the sticker.
Thanks man. Gonna look into buying new psu. Do u have any recommendations?If the PSU is more than 3-4 years old, I would suggest you to change it. The VS series from Corsair are from the lowest tier of the brand and it's better if it's not used for gaming rigs.