Let's turn on a computer, and instead cause in life, nothing happens - the team seems completely dead. Although the cause is often a faulty power supply, sometimes the power button itself can not function properly. Before investing in a new power supply, you can easily check if this is the case 
First, you ought to open the computer's case, this is usually finished by removing the left-hand panel of the pc (when viewed from the front), this usually simply entails removing two screws from the back of the case. After you remove the panel, lay the computer down on its side on a flat surface. You ought to look carefully for a series of thin wires which come within the the front of the case towards the computer's motherboard. The wires are normally in different coloured pairs and every pair leads to two small pins on the motherboard; across the motherboard (and included in the motherboard manual) you will find text which indicates what each pair of wires does. You should have a pair for the internal speaker, a pair with the reset button, a pair for the power switch, and a pair for the power light

Your wires we're interested in are the ones striking as the power switch often indicated as PWR-BTN or something similar. Unplug these wires from the motherboard by pulling lightly ande gently on the connector. Next, you will need early morning flat-bladed screwdriver which can be used to bridge the gap between pins on the motherboard where the wires were connected. The computer need to be plugged in and if there is a switch on the power supply at the back of the case, this needs to be on as well. In the event the computer starts when you make a connection between the two pins with a screwdriver, then you know your problem is a faulty power button or a bad connection in between the power button and the motherboard. Be cautious to not touch anything while using the screwdriver apart from these pins
Should the computer still doesn't switch on, then it's most probably the power supply which is causing the problem

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