Aorus 3090 black screen

Gigabyte Aorus Xtreme 3090 Asking -----$700 local to San Diego 92117. I used this roughly 6 months, mining between 12:00 AM and 6:00 AM on the weekdays, and 12:00 AM to 2:00 PM on weekends. Card works great. I upgraded the thermal pads on the RAM so that it runs substantially cooler. A few scuffs and scratches from what I would call normal use.