Porquê que o meu P.C o monitor so pisca amarelo e não inicia o computa

@angelojose51625 we need to know which LED is flashing and what exact formfactor your Optiplex is. There are multiple different 790's Is it a:

(Ultra Small Form Factor)

(Small Form Factor)

(Desktop)

(Mini-Tower)

As soon as we know, we can try and help you with getting your computer fixed.

Translation

@angelojose51625 precisamos de saber qual o LED que está a piscar e qual o formato exato do seu Optiplex. Existem vários 790 diferentes:

(Ultra Small Form Fator)

(Fator de forma pequeno)

(Desktop)

(Mini-Tower)

Assim que soubermos, podemos tentar ajudá-lo a reparar o seu computador.