My GTX 980 is just showing a black screen through HDMI. I do not currently have access to a monitor with Display Port. What other things can I do to try and troubleshoot it? Fans work fine, computer turns on fine, just no video output. Thanks.
HeatwareOS: W10 64
CPU: Intel Core i9-9900K @5GHz 1.28v
Cooling: Corsair H100i RGB
Mobo: Asus Z390i Gaming
RAM: G.Skill TridentZ Royal 16GB 3200MHz
SSD: Intel 660P 1TB | Samsung 850 EVO 1TB M.2
GPU: EVGA GTX 2080 Ti (Custom Hybrid) 2150MHz
PSU: Corsair HX1000i
Case: White
Caselabs(RIP) Mercury S3
Display: Alienware AW3418DW 21:9 120Hz GSync
Mouse: Logitech G403 Wireless
Keyboard: Max Keyboard Blackbird
Audio: Infinity IL10 paired to SA-50 amp