Question HDMI signal not detected after changing PSU

Dec 18, 2021
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I bought a new psu since my pc would randomly turn off while gaming. My previous psu was a gigabyte P550B and upgraded to a seasonic focus gm-650 but after hooking it up my monitor would say no HDMI signal detected. My pc specs are gtx 2060, ryzen 5 3600x, B450M MB.
Any help would be appreciated.