esquema AMD RX 570 com problema na linha de PWN preciso do esquema

[abuaxe1027]

My RX 570 board is not powered by the vrms and does not turn on, a while ago I was still able to turn it on and off by turning the pc on and off several times until it turned on, as soon as it turned on it worked normally without bugs, artifacts or heating, I could play heavy games for days it worked perfectly, but if you turned off the pc then it didn't work again, then i had to take the pc board out wait about 1 hour and then do the whole process on and off until it triggers again. after several tests I saw that the defect is in the pwn line that normally enters the 3.3v and 12v but does not send to the vrms. I need the electrical schematic of this board to know which component is really not working. Waiting for a response and release of the schema download Thank you.

[abuaxe1027]

(traduzido)

Minha placa RX 570 nao esta alimentado os vrms e nao liga, um tempo atraz eu ainda conseguia aciona la ligando e desligando o pc varias vezes ate ele acionar, assim que acionava ela funcionava normal sem bugs, artefatos ou aquecimento, podia jogar games pesados por dias que funcionava perfeitamente, mas se desligase o pc ai ele nao funcionava novamente, ai tinhe que tirar a placa do pc esperar mais o menos 1 hora e depois fazer todo processo de liga e desliga ate ela acionar novamente.
depois de varios testes vi que o defeito esta na linha do pwn que entra normalmente os 3.3v e os 12v mas nao envia para os vrms.
Preciso do esquema eletrico dessa placa para saber qual componente realmente nao esta funcionando.
Aguardo resposta e liberação do download do esquema 
Obrigado.

[curtolo]