Nvidia cards not showing in z77-D3H

Hi, I have purchased a gigabyte z77-D3H motherboard, I have three cards RX 470, RX 580, and Nvidia RTX 3060, both AMD cards are working fine but when I attach the third one which is RTX 3060 the hiveOs not showing me any cards on the dashboard.
Configuration

Motherboard
Z77-D3H Gigabyte Technology Co., Ltd. (F18 08/21/2012)
CPU
2 × Intel® Celeron® CPU G530 @ 2.40GHz
Disk Model
ATA Lexar 128GB SSD 128GB
I am using Gen 2 in bios.
I am solving this problem for 3 days but am still unavailable to solve this problem.

This topic was automatically closed 416 days after the last reply. New replies are no longer allowed.