cpu ez debug

Hello, I am not sure whether I am in the right place or not for this question. But I was reading another issue similar to mine on this forum and tried the fixes recommended and it didn't work. This issue occurred strangely enough after I had switched cases for my pc. I built my own pc by...

My problem is when i turn my pc on it's start normally but after sometime keyboard stops responding and when i try to restart it get stuck on cpu ez debug light, after waiting for hours again pc gets successfully booted but same problem keyboard stops working making beep sounds only mouse works...

So I recently built a new pc and I haven't used my old one since June 7th, I'm planning on giving this old one to my younger brother. So basically I put back my old PSU into my old setup, connect all the cables, and make sure there isn't one loose. Then I bought a new SSD for the old setup to...

Help! I got new MSI b450 tomahawk max II, but it's not booting to BIOS, it is showing CPU EZ debug led and the led disappearing in 2 minutes and throughout this whole sequence I'm not getting any display with HDMI from gpu. Everything is starting up like cpu fan, gpu fan, motherboard lights...