The Power Supply convert's your regular household current into low DC voltage used by computer. When this component fails,there is simply no activity going on wih your computer.Remember to do easy troubleshooting first.Inspect Power Supply for any damage.Double-Check all connections.
Learning how to check your power supply and how to replace it when needed can be a life saver if you're a computer buff or in business with trusted PC.Don't take for granted simple pleasure of turning on your PC and everything works just fine.
We turned on one of our computers recently and in about one hour,it just re-booted itself.And it continued doing so about 10 times a day until we found out power supply was culprit.Things to look for when your power supply is going bad or just dies on you are following.
NO POWER TO THE COMPUTER
Here you must first check wall outlet for power by connecting another device such as a radio or lamp to be sure power is present.If computer is connected through a surge protector,check it as well.
If wall out has power,check power cable going to PC to see if AC voltage is making its way to system unit.Do this with use of a multimeter.
If there is power,you will have to open PC and check for power from power supply to motherboard.
When using a multimeter to check voltage,be sure you have a good ground for black lead of multimeter.
One main problem you may face with an ailing Power Supply is that it may re-boot computer without any warning.All information is lost and it seems as though this happens at worst possible time.
Booting errors when computer first start's up is another indicator of this component going on blink.
POWER DISTRIBUTION PROBLEMS
When power supply begins to fail,you may receive power at one device and not another.For example,the Hard Drive may receive power but CDROM Drive has nothing at all.
Another headache with would cause re-booting is intermittent power going to drives or motherboard itself.Follow steps below to check your power supply should you experience some of above problems.
CHECKING THE POWER SUPPLY
If wall outlet,and power cord are good,make sure connection at motherboard is secure.Then you may have to face fact that power supply itself is bad.If you have a Multimeter you can test power supply output before purchasing a new one.Simply follow these steps.