Question PC wont boot after a week of working

Oct 29, 2022
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PC parts
MOBO - asus tuf gaming x670e-plus
GPU asus tuf 4090 oc
CPU ryzen 7950x
ram kingston fury ddr5 16gb 5600mt/s with amd expo profile 4 sticks KF556C36BBEK2-32
PSU corsair hx1200
nvme samsung 980 2tb
So i build new pc two weeks ago i used it for about a week and one day i came back from work it was sleeping witch was strange becouse i did not turned on sleeping mode i generaly leave it on whithout sleep mode so i moved my mouse and pc started booting all fans 100% i waited for about 5 mins nothing happened it was stuck on dram light and i noticed power button blinking 1 times a second but didint find anything about power button blinking 1 time/s ,only 1 time every 2 sec and other ones so i holded power button to turn off and powered back on same thing repeated but without power button light and it never came back after that i turned off pc taken out power from psu pressed power button for several times puted cable back and pressed power button fans started behaving strangely goin up and down up and down on curve (pc was not restarting like it was trying ram configurations like he usally do when you first setup) i left if for several minutes but nothing happened i tried reseting cmos after that then i turn on fans just go on constant speed i dont think its 100% after that i tried flashbacking bios to newest beta version nothing changed tried one ram stick in system did not work after that i left it for several days. new bios came flashbacked those didint helped after that i tried reinstaling cpu tried every single ram stick in single slot config tried different slots for single ram and it never done anything but stay on dram light tried taking out motherboard and cheking for burns or something strange didint find a thing any idies what can it be?