No power. We have an extra computer that we had sitting for about 2 years. Before i set it up made

Question

We have an extra computer that we had sitting for about 2 years. Before i set it up made sure the inside of the case was dust free. This computer had trouble and it was under warranty so we had it fixed, but the wife was taking online classes at the time and we needed another computer right away resulting in this one sitting for 2 years. It worked fine after the repair job and maybe had 10 hours on it. When I set it up now it worked for about 15 minutes than died like someone pulled the plug. Outlet has power and the cord is good but it doesnt do anything no fan lights nothing. Power Supply? Compaq Presario SR1030NX is the tower model