Power supply is found on every personal computer. It really is device where power is received from the alternating current and converted to direct current that is useable by the pc. 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 heats fast when used and cools down when the computer is shut down. The heat produced by electric surge may cause the components to overheat more frequently than other parts of the CPU. As the outcome, the power supply is the particular part that is most prone to failure.
One most common symptoms of power supply failure could be the inability of power to come on. Several reasons might cause this to happen. The first thing you should do is to check whether the socket has power. To do this, what you just 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 examine whether your computer plug is already broken. This might be a rare circumstance however it is probable to happen.
Another thing worth checking is the voltage setting. In the back of the CPU where the power supply is seen, you can surely locate the volt quality selector. Check if it is on the correct setting, which is 220v. On a 110v country, set the power supply to 110V.
If in case the power comes on yet there is no live screen, you may try shutting down the computer again. Booting for at least two times would associated with power supply to stabilize.
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Usually, this happens when the motherboard demands more timing from the current power supply.
But if you have done this for several times and there is no sign of live display, it is more likely that the motherboard protects by itself. Don’t react violently if this happens; purchase a new power supply that the motherboard indicates. It is cheaper to buy power supply in order to replace the motherboard so you must be thankful your motherboard does not accept the power supply.
Another common reason for 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 supply. 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 fan. If you notice that the power supply fan produces noisy whistle-like sound, the cause may 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 has already been removed.
In the case of PC shutting straight down 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 unpredictable power supply. If this happens, it is advisable to replace your own power supply.
These are some but most common power supply problem. If one of these occurs, it is always wise to check everything just before buying a new power supply.