Assalam-o-Alikum Experts mere pas gx 620 dell pc hy prblm ye k jub me pc k power wale button ko press karta ho to on nahi hota button wali jagah light blink karti hy mene power supply check ki wo to theek hy sumjh nahi aaraha kia prblm hy ap meri rehnumai farma de.??