Question about E-Machines T1742 PC Desktop

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Power supply When i plug in my computer and switch it on, there is nothing happening, the power supply fan is not on. Can I conclude that I have a bad power supply?

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  • alfredshin Nov 02, 2007

    Is the power supply for the emachine proprietary? Can we use a standard power supply to replace it?

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Hello,
for solving the given problme of yours do the following:
1.See that the power connectors and 4 pin connectors are connected properly.
2. Remove the SMPS of that system and connect it to the other PC or if you have multimeter check that 12V is coming into the SMPS.
3. If that system is also not working then you must replace the SMPS with another one.

Let me know if your problem is solved and rate me as FIXYA!

Posted on Apr 24, 2008

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I would tri diffrent power cord and and diffrent out lets.  Then replace the power supply and if that doesent work the motherboard would be the cause of the issue.

Sincely,

Kevin

Posted on Nov 01, 2007

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1 Answer

Computer won't turn on.


There must be a problem with your power switch on your computer casing, or motherboard or power supply.

Detach your power supply and try this, to check if your power supply really works. If the auxiliary fan will turn, your power supply is good
25627818-lfqggqo5gl3n2v4xynrvsb5u-5-0.jpg Testing your power supply and motherboard as seen on photo
25627818-lfqggqo5gl3n2v4xynrvsb5u-5-2.jpg If the cpu cooling fan and power supply did not turn the fan, but you have checked already the power supply that is working then you can conclude that your motherboard is need to be replace. But the power supply and motherboard and working, meaning to say your computer casing need to be replace or try fixing the contact of the switches attach to your casing.

Have a good day.

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How do I know if the power supply is bad on gateway gt5676 computer? I push power button and nothing happens. I unplug it and the green light flashes on the power supply( Bestec ATX 300 12 EB3). Plug it...


u can buy power supply testers, just a device you plug the power supply into, or try a new power supply. but if nothing is happening no fans etc theres a good chance its just the power supply.

Jun 17, 2012 | Computers & Internet

1 Answer

Computer not powering up


bad power supply. just replace

Jun 07, 2012 | Computers & Internet

1 Answer

No power to my desktop computer HP A1330N and no green light in the back of the power supply


You replaced power supply and your made sure you plugged everything back into the motherboard snuggly and in it's proper place? If so it might be your motherboard is bad.

Make sure you have the new power supply turned on. Sometimes there's a O/I switch on the back of the power supply. Flip it and try to boot and see what happens. You might have another bad power supply.
If so your motherboard might be burning them out.

Try removing the power cord for 30 seconds and press and hold the power button. After 30 seconds put the power cord back in and press the power button to see what happens.

Do your fans work when you press the power button? Do you hear any fans running?

Mar 23, 2012 | Computers & Internet

2 Answers

I have a Dell Dimension 8400 Series desktop that is totally dead. Nothing happens when power button is pushed. Of course it is plugged into a live outlet.


Possibly a bad power supply. Could aslo be bad hardware.

Depeding on how save you are with computers, depends on how far you might want to go with this.

But remove everything one at a time and try to start the computer. Until all you have is a motherboard, processor, fan, and power supply hooked up. If you are still not getting any power, try to swap the power supply first. If that doesnt work then either Motherboard or Processor.

Lastly, swap the power cable out to see if its a bad cable.

May 03, 2011 | Dell Dimension 8400 PC Desktop

1 Answer

My computer won't start. Power supply (ttgi 450ss) has a blinking green light and the power supply fan starts when plugged in. Motherboard (asus m2npv-vm) has a green light illuminated between the pci...


See if you plugged in the 4 pin power connector on the motherboard besides the main power connection on the power supply (usually black colored and its a plastic 4 pin connector)

Try another power supply if all else fails. If new power supply does not work with this unit then its a motherboard which is blown and motherboard needs replacing.

Hope this helps

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1 Answer

Gateway yellow power button, nothing starts, no fan, nothing. opened up computer and see mobo led light is lit. newton ps has a test button. tried to test with various components plugged in and the test...


Power supply has several voltages. Just because the 5v power is active doesn't mean all the voltages are OK. You need to have the power supply tested for 12v and 3.3v. A quick test is to unplug all the wires from the power supply. There is a single green wire on the motherboard main plug. Connect (use a bent paper clip) that green switch wire and any black wire. Plug in the power supply and it should run (fan starts)

Oct 26, 2009 | Gateway (ATX-300-12EB3) (ATX30012EB3)...

1 Answer

Computer does not power up. The green light on the back of the PS does not come on. I have 120 volts at the plug but when plugged into he power supply and push the power button on front of the computer...


make sure the switch on the back of the power supply is set to 120 volts , does the power-supply fan come on? if not it may be the power supply they are pretty inexpensive and not too dificult to replace

Sep 17, 2009 | Computers & Internet

1 Answer

D4 Post code using tech aid diagnostic card


check power supply in back to see if you have on and off switch but you would'nt be the first with this problem from dell about the power supply going out meaning:

if you don't have nothing happening when your trying to boot the computer then it's the power supply, plug in computer power up and feel in back to see if the fan is blowing if nothing power supply is gone call dell.

Apr 05, 2009 | Dell Dimension 4400 PC Desktop

1 Answer

Dell Dimension 8300 wouldn't start


Sounds like a power supply. You are getting the standby voltage and not the switched. plug all your wires in except the big 20 or 24 pin motherboard connector, take a small wire and short the green (PSU_ON) to black (ground) wires. This will simulate the computers "ON" signal. The fans should all spin up and your plugged in accessories should work, which means bad motherboard, if not bad power supply.

Mar 24, 2009 | Dell Dimension 8300 PC Desktop

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