1 long beep and 3 short

Specs : Mobo :Asus prime x370 pro CPU : R7 1700 Ram : 2x8 HyperX Savage 3000mhz cl 15 Gpu : Various (R7 370 , Radeon 4670 , HD 3450) PSU :Corsair CX 550m So one day my pc froze with a black screen and windows 10 got corrupted (wouldnt close with the button). Now sometimes the screen opens for a...