Computer problems?

Question

Iron

Hello guys. Recently assembled a computer, the problems started almost immediately. Now they have become more serious: 1. At first, the
microphone disappeared, it just did not work.
2. I stopped recognizing any headphones or speakers, there is no sound at all.
3. It stopped turning off or restarting normally, when it is turned off, everything turns off except for the computer, also when it is rebooted, but the computer does not restart, but is simply turned on, while the keyboard, mouse, screen are turned off. What could be the problem? Help me please. I really need a computer, I don’t want it to rot at all.

Answer 1

90% of the motherboard is screwed up - change
as a temporary measure, disabling burnt parts
in the BIOS in your case, the built-in sound
, also experiment with disabling other components such as usb and network if it does not help