Question Cpu fan getting louder then blue screen

Jun 27, 2019
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i looked at my temp on the cpu it was in 40 s while i was playing PSU:gigabyte 750wH
i5 8400
asus prime z 370 A II
masterair ma410M
RTX 2060
1 tb hdd
240gb ssd
the fans are going louder and i get a black screen that says no signal
 

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