After building my new computer, now i can play most games normally, but sometimes crashes happen everytime in a row. To be more specific, the game freezes for a second then closes without any warnings/errors showing up. Also, some days goes without any crash, but when it happens it will happen lots of times in a row after a little time that the game is open.
I tried lots of solutions but none were enough to solve it till now, my last resort was having contact with steam suport, with led me to this discussion right now, since they didn't identify the exact solution for it.

Now, i've got some info from event viewer, which i'll be sending the text as example from when it detect the crash from me playing sekiro, btw the text is portuguese since i'm brazilian:

Nome do aplicativo com falha: sekiro.exe, versão: 1.6.0.0, carimbo de data/hora:
0x5fa3e066
Nome do módulo com falha: sekiro.exe, versão: 1.6.0.0, carimbo de data/hora: 0x5fa3e066
Código de exceção: 0xc0000005
Deslocamento de falha: 0x0000000001b5e068
ID do processo com falha: 0x290C
Hora de início do aplicativo com falha: 0x1DC463373E0D1E9
Caminho do aplicativo com falha: C:\Program Files
(x86)\Steam\steamapps\common\Sekiro\sekiro.exe
Caminho do módulo com falha: C:\Program Files
(x86)\Steam\steamapps\common\Sekiro\sekiro.exe
ID do relatório: e4e2a60d-7cb1-4926-82de-62967e6657e3
Nome completo do pacote com falha:
ID do aplicativo relativo ao pacote com falha:

I coudn't find any clues from this, and the same text goes to every game that i play that also crashes, not only steam games but also minecraft, maybe even more that i didn't try externally yet. Is it really a hardware problem afterall?