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Dell Inspirion 1545 - Probleme de pornire

Guest bogdan-97

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Guest bogdan-97

Salutare tuturor !Am o problema cu un notebook Dell Inspirion 1545 : nu vrea sa porneasca de nici o culoare . I-am verificat liniile de tensiune : 5V in regula , 3.3 in regula , dar nu sunt sigur de tensiunea 1.8V daca trebuie sa o am in permanenta sau doar cand notebook-ul e pornit ? Am mai invartit placa de baza , am mai facut niste verificari pe la driverii MOSFET si dupa mai incercasem sa ii dau o pornire asa in gol ; ca prin minune pornise . Mai facusem o serie de masuratori si de data asta aveam tensiune pe linia de 1.8V . Un pin de la conectorul pentru buton care presupun ca e trigger-ul de pornire (+3.3V intre el si masa) nu avea mereu tensiune , trebuia putin sa apas pe conector ; il lipisem , am permanent 3.3V , dar tot nu vrea sa porneasca daca-l scurtcircuitez la masa .Mentionez : tensiunile sunt curate fara ripple-uri sau alte minunatii , pusesem si un rezistor de putere ca sarcina .

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