Power supply is found on every personal computer. It really is device where power is obtained from the alternating current and converted to immediate current that is useable by the computer. It is located inside the CPU recognized by cooling fan and the power-cord receptacle.
Since the power supply receives the very first surge of alternating current, it temperatures fast when used and lowers down when the computer is turn off. The heat produced by electric surge can cause the components to overheat more frequently compared to other parts of the CPU. As the result, the power supply is the particular part that is most prone to failure.
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A single most common symptoms of power supply failure will be the inability of power to come on. Several reasons might cause this to happen. The very first thing you should do is to check if the socket has power. To do this, all you have to do is to unplug your computer plus try other plug. It can be a stereo or a lamp. If the radio or the lamp work, then you have to check whether your computer plug is already broken. This might be a rare circumstance but it is probable to happen.
Another thing worth checking is the voltage setting. At the back of the CPU where the power supply is visible, you can surely locate the voltage selector. Check if it is on the right setting, which is 220v. On a 110v country, set the power supply in order to 110V.
If in case the power comes on but there is no live screen, you may try out shutting down the computer again. Boot-up for at least two times would associated with power supply to stabilize. Usually, preparing when the motherboard demands more time from the current power supply.
But if you might have done this for several times and there is no sign of live display screen, it is more likely that the motherboard protects itself. Don’t react violently if this happens; just buy a new power supply that the motherboard indicates. It is cheaper to buy power supply in order to replace the motherboard so you needs to be thankful your motherboard does not take the power supply.
Another common cause of power supply failure is the fan defect. If the power supply is working correctly, you should not hear any cranking audio. You must also feel a breeze from the power. If you hear a cranking sound, there is no need to panic. Make sure that the sound is not caused by any solid item interfering with the blades of the enthusiast. If you notice that the power supply fan generates noisy whistle-like sound, the cause could be the capacitor.
Power supply fan can be replaced. But make sure that it is removed simply by technicians because if you remove it improperly, you might get electrocuted even if the power was already removed.
In the case of PC shutting lower randomly by itself, make sure that the power supply maintains its right temperature. Also check if the fan is functioning properly. It could also be the cause of unstable power supply. If this happens, it is advisable to replace your own power supply.
These are some but most typical power supply problem. If one of these happens, it is always wise to check everything first before buying a new power supply.