Dead PC

Yesterday I had lots of fun with my PC having a death scene. It started with a blue screen showing IRQL_NOT_EQUAL_OR_LESS error message. After the reset button, PC froze during booting. Later on the BIOS froze as well while navigating the menu. I tried to swap the RAM DIMMs and put single ones into other slots. At one point in time, the BIOS was doing a lot of quick beeps. Now that doesn't even happen anymore.