Having problems with your E-Machines eMachines Desktop PC ?

No power when i turn on the computer and everything is plugged in

\015 My daughter used my old computer and now the screen light does not come on or the fan or the computer is it possible to fix this or should i throw it out? its runnig windows xp and is an older model T2642. Culd it be a cord?\015

Answers :

Most likely it is a motherboard issue. I have seen a lot of these mobo issues in my shop recently. You can inspect the mobo yourself.
\015\012Failure of motherboards is usually due to breaking capacitors. A few years ago a capacitor company stole the "recipe" for making capacitors from another company and tried to make their own, unfortunately they did not get the ingredients right and the capacitors started breaking after 2-3 years of use. They sold these capacitors at very cheap prices and a lot of computer companies and power supply makers bought them. This is easy to diagnose. Look for capacitors (caps) (they look like little tiny soda cans) on your motherboard (mobo). They should be perfectly flat on top and not bulged or swelling or leaking anything. The dead giveaway is the fact that you are not getting a monitor signal and if you listen to your computer as it starts up, a few of the devices may not start (hard drive, etc). A failed video card will also give you "No signal message", but the computer should sound normal when starting up. Mobos are usually expensive to replace because the computer makers have them made especially for them and only order so many. They usually do not have a lot of extras laying around. There are a few companies that will repair broken capacitor issues. Hope this explains why they can fail. They (mobos) can also fail if overheated (like when a case cooling fan fails), the cpu is overclocked and not cooled down (which raises temps), the power supply fails or by lightning and power surges. Also if you add a bunch of extra components without upgrading the power supply you can suffer underpowered situations.
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