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Question HDMI and DP connection shuts PC off

Jun 30, 2020
I was installing a new monitor and tried connecting it to my rx 480 via HDMI. My PC shut off immediately and the only way to turn it back on is to remove the HDMI and flip the psu switch.

What I've tried so far: 1) use different working HDMI cable 2) use DP cable 3) plug in HDMI with other side not connecting to the monitor

Is this a GPU issue?