Question gpus not detected

Minecraft_Potato

Prominent
Dec 27, 2021
18
0
510
Hi guys, I have three EVGA 3090 with waterblocks. I was running one on PCIE x16, and two on x16 to x1 risers. The risers are USB. Everything was running fine but one day the two 3090 on risers can not be detected anymore. I tried to switch them into different PCIE x16 slots and there is no video output. The two non-working cards can not be detected in bios or device manager. The drivers used is the latest drivers. Have tried using DDU. Any help is appreciated! Thank you!

i7 9700k
asus Z390-A
EVGA 3090
Kingston 480GB A400 SSD
EVGA Superniva 1600W Gold PSU