Suspect bad Electrolytic Capacitors, in the motherboard Voltage Regulator circuit, of the motherboard.
eMachines motherboards are known for having bad 'Caps'. Low quality, due to poor quality of components used in the capacitor.
To diagnose if this is the problem, will require unplugging all cables to the computer tower, as well as unplugging power. May also require a flashlight, and could include the use of a magnifying glass.
After the computer case is opened, to access visual inspection of the motherboards capacitors, the First thing you want to do is to Touch the metal frame of the computer case.
This action will relieve your body of the Static electricity you are carrying. (Note* If you get up and walk away while working on your computer, it is imperative that you touch the metal frame again, upon your return)
This link will guide you, in a visual inspection of bad capacitors,
This link gives you more perspective of what I am referring to, (From Xeoncross)
Electrolytic Capacitors fail. For simplification of an Electrolytic Capacitor's construction, let it suffice to state that they are small aluminum 'Cans', and have Electrolytic paste inside.
(Should you like a more detailed explanation of their construction, I would be happy to oblige)
When a capacitor fails, the paste inside develops a gas. (Electrolytic Capacitor will be shortened to capacitor from here on in. There are other forms of capacitors. I will be referring to Electrolytic Capacitors, only),
The gas expands, and pushes the paste out of the capacitor. So much paste loss, and the capacitor operates at a weakened state. (Less Capacitance)
Too much paste loss, and the capacitor fails.
The motherboard Voltage Regulator circuit takes care of many hardware components on a motherboard.
One of the main hardware components it takes care of, is the Processor. A Processor must have a 'Clean', steady, supply of voltage. A Processor has a very tight tolerance range in respect to this.
Processor turns on, runs for a few seconds, then turns off. Computer starts, quits, then restarts. Bad motherboard Voltage Regulator circuit.
http://www.hardwaresecrets.com/article/616
If this turns out to be the cause, the easy solution would be to replace the motherboard. A more extensive solution would be to replace the bad capacitors.
Answers & Comments
Suspect bad Electrolytic Capacitors, in the motherboard Voltage Regulator circuit, of the motherboard.
eMachines motherboards are known for having bad 'Caps'. Low quality, due to poor quality of components used in the capacitor.
To diagnose if this is the problem, will require unplugging all cables to the computer tower, as well as unplugging power.
May also require a flashlight, and could include the use of a magnifying glass.
After the computer case is opened, to access visual inspection of the motherboards capacitors, the First thing you want to do is to Touch the metal frame of the computer case.
This action will relieve your body of the Static electricity you are carrying.
(Note* If you get up and walk away while working on your computer, it is imperative that you touch the metal frame again, upon your return)
This link will guide you, in a visual inspection of bad capacitors,
http://www.capacitorlab.com/visible-failures/index.htm
This link gives you more perspective of what I am referring to, (From Xeoncross)
Electrolytic Capacitors fail.
For simplification of an Electrolytic Capacitor's construction, let it suffice to state that they are small aluminum 'Cans', and have Electrolytic paste inside.
(Should you like a more detailed explanation of their construction, I would be happy to oblige)
When a capacitor fails, the paste inside develops a gas.
(Electrolytic Capacitor will be shortened to capacitor from here on in. There are other forms of capacitors. I will be referring to Electrolytic Capacitors, only),
The gas expands, and pushes the paste out of the capacitor.
So much paste loss, and the capacitor operates at a weakened state. (Less Capacitance)
Too much paste loss, and the capacitor fails.
The motherboard Voltage Regulator circuit takes care of many hardware components on a motherboard.
One of the main hardware components it takes care of, is the Processor.
A Processor must have a 'Clean', steady, supply of voltage.
A Processor has a very tight tolerance range in respect to this.
Processor turns on, runs for a few seconds, then turns off.
Computer starts, quits, then restarts.
Bad motherboard Voltage Regulator circuit.
http://www.hardwaresecrets.com/article/616
If this turns out to be the cause, the easy solution would be to replace the motherboard.
A more extensive solution would be to replace the bad capacitors.