Question about E-Machines Bestec ATX-300-12E Rev. D 300w E-Machine GTW Power Supply Part 100929 (ATX30012E) Power Supply

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I have an emachine and it won't turn on.

How do I check the power supply. I have a gen light on inside the computer.

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  • Anonymous Dec 17, 2008

    i get no power what so ever . i have checked electrical outlets and cords associated with the tower

  • Anonymous Jan 07, 2009

    my hp computer wont turn on, a little light flashes on the bestec atx 300 power supply. what can i do?

  • jjohnmonahan Feb 17, 2009

    I have a Bestec ATX-300-12EB3 Rev: S2 power supply for my Gateway desktop that has just just gone to the Big Power Supply in the sky. As I have nothing to lose and much to gain, I am looking over the supplys circut board looking for the problem and find myself in need of the schematic for it would really help out alot, even if it's only to show the fuses location and voltage test points. Does anybody know where I could to find this puppy without having to sign up with every web site I go to looking for it? It seems to be a very common power supply, and I would think it's schematic would be as common.

    Thanks,

    John

    jjohnmonahan@aol.com

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  • 452 Answers

You can get a power supply tester from Radio Shack for like $12. The systemboard is most likely the cause. not passing on the clear to power up command.

Posted on Dec 10, 2008

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1 Answer

I have an emachine t5026 that won't turn on. It


There can be two problems with your PC. either the power supply is faulty which is highly probable, and the other is that your Motherboard maybe faulty or both things are faulty. Try replacing the Power supply first. It should solve your problem.

May 15, 2010 | E-Machines Emachine T5026 power supply **...

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I have an emachine t5026 that won't turn on. It sounds like a car tying to start and the lights on the front flash as does the light on the mouse, but it won't start.


I have an emachine t5026 that won't turn on. It sounds like a car tying to start and the lights on the front flash as does the light on the mouse, but it won't start

Mar 29, 2010 | E-Machines Emachine T5026 power supply **...

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I have a T3626 emachine that I replaced the drive.


check all your ground screws on the motherboard. If that doesn't work try booting it up with out the hard drive. if that doesn't work, pop out the BIOS battery and unplug your computer, let it sit for about a min. and put the battery back in and restart.

Sep 18, 2009 | E-Machines Emachine T5026 power supply **...

1 Answer

When i turn the power on the green power supply light goes out and doesnt turn onand the computer wont turn on


Follow these:
  1. Unplug the computer.
  2. Disconnect the power supply from the motherboard and all other accessories.
  3. Replug the power supply.
  4. Connect the green wire (PSON) of the power supply by way of a jumper wire to any black wire (ground).
  5. The power supply should turn on with its fan. If not, it is defective and should be replaced.
  6. Check the ATX12V connector of your motherboard. It is were you removed the 4-wire, 2 yellow and 2 black, connector of the power supply. Check the continuity of the yellow wires to the black ones. It should be open, otherwise it is shorted and your processor is defective and should be replaced.






Aug 19, 2009 | E-Machines Emachine T5026 power supply **...

1 Answer

Emachine won't turn on


With an Emachine it can be the power supply or the motherboard.

My guess it is the capacitors on the motherboard. Check to see if the round cylinders on the motherboard are bulging on the ends, and possibly rusty looking. Esp around the Main CPU/Fan.

They are notorious for bad capacitors.

If the caps look good, it still could be the motherboard, or maybe the power supply. Switcing out the power supply is pretty easy.

Unplug
disconnect all the power connectors
unscrew the 4 screws on the back of the computer
remove and replace the power supply.
Make sure you get a power supply with as much power, or more is much better. 350 watt or higher.

For more on the capacitor plaugue, check here
http://paulrepair.blogspot.com/2009/03/blown-capacitors-it-is-plague.html

Mar 25, 2009 | E-Machines Emachine T5026 power supply **...

2 Answers

EMachine T5026 no boot


This just happened to my t5026. I had to replace the power supply to fix.

Mar 08, 2009 | E-Machines Emachine T5026 power supply **...

1 Answer

EMachines T2245 won't turn on, front light stays on


IT CAN BE MANY THINGS 1 UNPLUG SYSTEM FROM THE WALL, 2 REMOVE THE MEMORY AND REINSTALL THEM, 2
CHECK ALL CONNECTION INSIDE THE COMPUTER CASE AND THE OUTSIDE TO, 3 TO REMOVE A POWER SUPPLY IS 4 PHILLIPS SCREWS POWER CONNECTIONINSIDE CASE, REMOVE THE POWER FROM ALL OTHER DEVICE CAREFULLY AND TAKE IT TO YOUR NEARST COMPUTER STORE, SAVE YOUR RECIEPTS IN CASE IT IS NOT THE POWER SUPPLY PROBLEM, RETURN IT AND GET YOUR MONEY BACK.
POWER SUPPLYS SHOULD NOT COST MUCH, IFYOU ARE STRAPED FOR MONEY GO TO GOOD WILL AND HAVE THE FIRE UP ONE OF THE SYSTEM THEY HAVE THEY MAY EVEN HAVE A NEW ENPTY TOWER CASE LAYING AROUND FOR 30.00 DOLLARS.

CANDYMANGANDY

Jan 29, 2009 | Bestec (ATX-250-12E) 250-Watt Power Supply

1 Answer

Computer will not turn on


Best way to check is to open your case. Near the power supply plug to the motherboard should be a little led light. If it is getting power to the board this light should be green. If it's unlit then most likely your power supply has gone bad. Hope this helps.

Dec 21, 2008 | E-Machines Emachine T5026 power supply **...

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