Pc screen frozen after loud noise from case

Sep 29, 2018
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Was playing on pc (its an old pc with bad specs) when playing game heard a thud coming from pc them screen froze , could hear friends talking in discord and they could hear me. I was still able to move around in game and could hear everything but the screen was still frozen , disconnected HDmi and reconnected and still the same screen. Rebooted but now monitor doesnt get signal

Specs: Gt 660
4gb ram
i3 (not sure specifix model)
350W power supply