How To Recognize And Repair Power Supply Problems
De BISAWiki
The Power Supply convert's your regular house recent into low DC voltage utilized by the computer. When this component fails,there is merely no action going on with your computer.Remember to-do the simple troubleshooting first.Inspect the Power Supply for just about any damage.Double-Check all connections.<br /><br />Learning how to check your power supply and how to restore it when required can be quite a life-saver if you are a computer buff or running a business with the trusted PC.Do not take for granted the easy satisfaction of turning in your PC and everything works just fine.<br /><br />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 per day until we discovered the power supply was the culprit.Things to find as soon as your power supply is certainly going bad or just dies on you're the next.<br /><br />NO POWER TO THE COMPUTER<br /><br />Here-you must first check always the wall outlet for power by attaching yet another system such as a radio or lamp to be sure power is present.If the computer is linked through a surge protector,check it at the same time.<br /><br />If the wall out has power,check if AC voltage is making its way to the method unit.Do the power cable going to the PC to see this with the utilization of a multimeter.<br /><br />If there is power,you must open the PC and check for power from the power supply to the motherboard.<br /><br />When utilizing a multimeter to check voltage,be sure you've a great soil for the black lead of the multimeter.<br /><br />RE-BOOTING PROBLEMS<br /><br />One problem you may encounter with an suffering Power Supply is that it may re-boot the computer without any warning.All information is lost and it seems as though this happens at the worst possible time.<br /><br />Booting problems once the computer first start's up is still another indicator with this element going on the blink.<br /><br />POWER DISTRIBUTION PROBLEMS<br /><br />If the power supply starts to fail,you may receive power at one device and maybe not another.For example,the Hard Drive may receive power however the Cd-rom Drive has nothing at all.<br /><br />Still another frustration with would trigger re-booting is the intermittent power likely to the drives or the motherboard itself.Follow the steps below to check your power supply should you experience some of the above problems.<br /><br />CHECKING THE POWER SUPPLY<br /><br />When the wall outlet,and the power cable are good,make sure the connection at the motherboard is secure.Then you may have to manage the truth that the power supply itself is bad.If you've a Multimeter you may check the power supply output before investing in a new one.Simply follow these steps.<br /><br />Turn fully off the PC,but do not unplug it,open the device unit. Set the multi-meter to read DC volts in the next range more than 12 volts.Locate a power connector similair to the difficult drive,or cdrom drive connector that is untouched and start the PC.<br /><br />You can even unplug a drive connector and put it to use as well.Turn on the PC and place the BLACK probe in to the power connector on among the BLACK wires.Touch the RED probe to the wire on the power connector.<br /><br />The multimeter reading should be +12 volts Now touch the RED probe to the RED line and the reading should be +5 volts.If no readings or different readings occured,you'll need certainly to substitute the power supply.If the readings were correct,you should examine the P8 or P9 connectors at the motherboard. These fittings are often named P4 and P5.To check these connectors,perform the following...<br /><br />Insert the BLACK probe in to P8 at one of the BLACK cables. Insert the RED probe into the P8 connector at the RED cable. The reading on the multi-meter should be +5 volts<br /><br />Check the power likely to the Motherboard contacts by inserting the RED probe in to P8 at the YELLOW wire and you should get +12 volts.Leave the BLACK wire holding the black wire at the P8 connector.Check the BLUE wire and the reading should be a -12 volts.<br /><br />Now transfer the BLACK probe to the BLACK wire on the P9 connector.Test the WHITE wire by inserting the RED probe and the reading should be -5 volts.Check the RED wires on the P9 connector and you should get +5 volts on each red wire.You won't get just 5 or 12 volts nevertheless the readings will be very close, such as for example 5.02 volts.<br /><br />If the Power Supply is a number of volts off,in both direction,such as when the RED wire should be reading -5 volts but if you can find no readings,replace the power supply it reads -8 volts,or.<br /><br />DON'T remove the power supply from the system model case when performing these tests.DO NOT perform these tests if you do not feel comfortable.Be sure to remove any and all electrical fixed build-up from your garments and body BEFORE touching any parts in the system unit.And NEVER open the power supply case for any reason,since high voltage could be present. <br /> <br /> <br />
