Question about Gateway eMachines ET1331G-07W Desktop X2 1.6GHz 4GB 640GB DVDRW

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Power supply computer is not powering up

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  • Shari Underwood-Potts
    Shari Underwood-Potts Nov 09, 2012

    I have replaced the power supply with another, but the new one is still not powering the computer up like it should.



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Power supplies must be compatible, is there any power that you can see or hear? could be your cpu fan has failed which would prevent boot. could be something worse like motherboard failure. you have not given enough info, what have you tried, is there any signs of anything working, noises, etc.

Posted on May 17, 2014


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Question about Dell D220P 01 Optiplex AC/DC Adapter 220-Watt Power Supply HOW DO I USE THIS UNIT TO PROVIDE 12V STANDALONE POWER?

most power supplies have a switch for 120 and or 220 options just move the switch to what setting you want. most power supplies can be used as a stand a lone power supply, if not than you need to request for a 220 watt power supply the can be used as a stand alone for pc or computer use. most computer retail should have them in stock. look on line or at

type power supplies stand-a-lone 220 watts computers compatible

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How to replace a computer's power supply

The power supply is one of the most common components to fail inside a desktop computer. If you don't mind turning a screwdriver, you can replace a bad power supply yourself and save on repair costs.

Before purchasing a replacement power supply:

- Make sure to get a power supply that is rated for at least the same wattage as your current power supply.
- Verify that the new power supply has all of the necessary connectors that your current one has. You can either check this visually by looking at the connectors that you have, or by making sure your computer is listed as one of the models that the new power supply is compatible with.
- Make sure the new power supply will fit inside your computer's case. (If the new power supply is compatible with your computer, that won't be a concern.)

To install the new power supply:

- Turn your computer off and unplug it from its power source.
- Unplug all of the cables leading from your computer, including the power cable.
- Open the computer's case. (If you're not sure how to do this, you can probably look it up online. Most computers either have screws in the back that come out, a side panel that slides off, or they open up like a clamshell.)
- Disconnect all of the cables leading from your power supply. Note what component each connector plugs into. You should have connectors for your fan(s), hard drive(s), optical and/or floppy drive(s), motherboard (may be one or two connectors), and the front power switch.
- Unscrew the power supply from the system case and remove it.
- Set the new power supply in the case facing the same way as the old power supply and screw it in.
- Attach all of the connectors. (You may have more connectors than components, but make sure each component that was connected before is connected again now.)
- Close the system case and reattach any screws.
- Plug the power cable into the power supply and then into the wall outlet.
- Reattach all other cables.
- Make sure the power switch on the back of the power supply is on.
- Make sure the voltage switch on the back of the power supply is set to the correct voltage (115 volts in the United States).
- Turn on the computer and verify that it boots up correctly.

on Jan 29, 2011 | Computers & Internet

3 Answers

Schematic atx diagram

I give up! Why would you need a schematic for a computer power supply? I've been in the computer business for over 30 years and have never needed a power supply schematic. Just curious!

Sep 18, 2013 | Antec BP350 350-Watt Power Supply

1 Answer

Is it possible to cause a powersupply overlaod

Power surge or lightning strike.

Power Supply Problems
Computer power supplies are often taken for granted even though the job they do is complex. While every power supply takes the electrical current from an AC outlet and converts it into something that an appliance can use, a computer power supply must do so at several different voltages at once.
A faulty power supply can cause many random computer issues and learning to diagnose them can save you a great deal of time.Recognizing an Overloaded Power Supply
Most power supplies have variable-speed fans.
If the fan always emits a loud, whining noise, there might be a problem.
This can be one of your first clues that you might be stressing your power supply.
First, check the power supply itself.
Some power supplies have two cooling fans and one may need to be connected to the computer's motherboard.
If there is only one cooling fan, examine it. Is it dirty?
The fan can be cleaned with a cotton swab dampened with a little rubbing alcohol.
If the power supply is clean and the auxiliary cooling fan (if applicable) is connected, you may be working the power supply too hard.
If you have a powerful computer with several hard drives, multiple video cards, and a speedy processor, temporarily disconnect a few of these components to see if this cures the problem. If it does, you will need to consider purchasing a new power supply.
An overloaded power supply may cause your computer to lock up or reboot when the computer is working particularly hard, such as when you are playing a game, rendering a complicated graphic image, or recording a song with real-time digital signal processing.
If you are experiencing these symptoms, consider replacing the power supply.

Recognizing a Failing Power Supply
A failing power supply can be difficult to diagnose. An audible signal may be your first clue, though. If you hear a grinding, buzzing, hissing, or clicking sound from your power supply, replace it immediately. It may be a serious fire risk.
Not every power supply fails in such spectacular fashion, however.
If your computer shuts down during the boot process or randomly while you are using the PC or if it locks up or reboots when you are not performing a complicated task, the power supply may be to blame.
Safety Note
Computer power supplies contain capacitors that hold a potentially dangerous charge.
If you are not completely comfortable around electronics, do not attempt to clean a dirty power supply on your own.
Have an expert do it for you, or discard the power supply and purchase a new one.,1073.html

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How to troubleshoot Bestec ATX-1956D Power supply to determine if it is the power supply or another computer will not power up green light on power supply goes dim but does not flash...

The power supply is very inexpensive and can most likely be bought from any of your computer retailers, Amazon - Just make sure to confirm the right model type of power supply. BEST to have it tested before replacing it. To make sure that is the issue.. Many computer shops will test for free.

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1 Answer

When I press the power button on my Everex computer; nothing happens. It's not getting any juice. Even the cd door won't open. Is there a fuse inside the computer that may have blown? Or is it likely the...


1) Make sure the surge protector your computer is plugged into, has power.

Could be the surge protector isn't any good.
Could be that the wall receptacle the surge protector is plugged into, doesn't have power.

2) Make Sure THE receptacle IN the surge protector, that the computer is plugged into, has power.

I have had more than one surge protector in the past, where just THAT receptacle the computer was plugged into, was bad.

"Hmmm, power on LED light of the surge protector is on.
Monitor, printer, and router plugged into the surge protector have power."

If this holds true for you, remove one of the peripheral's power cables out of it's receptacle in the surge protector, and plug into the receptacle the computer is using.

[A monitor, and a printer are two examples of a Peripheral]

Make sure THAT receptacle has power.

3) Bypass the Power On switch, to see if the problem is the Power On switch, or the Power Supply.

If I were to hazard a guess, my hypothesis would lean towards the Power Supply.
Power Supply failure, is one of the leading causes of computer failure.

Causes for Power Supply failure are generally,

A) Computer is dirty inside, as well as the inside of the Power Supply.

Dirt, dust, hair, carpet deodorizer, you name it, is 'inhaled' by the fans of the computer. No matter how good a housekeeper a person is, the above mentioned 'gunk' is going to get inside.

This 'gunk' is drawn through the computer, and drawn into the Power Supply.

[Computer case fans draw air into the computer from the front, or side.
The air is 'exhaled' through the rear of the computer.

The Power Supply fan draws air into the Power Supply, and pushes air out of the Power Supply, towards the rear of the computer.
Computer case fans in the rear of the computer also push air out.

A typical ATX style of Power Supply,

This 'gunk' coats the cooling components of the computer, and drops the cooling capacity of these components tremendously.

Heat = Wasted Energy

When the cooling components of the Power Supply, (The fan of the Power Supply, and Heatsink's which are used inside), are coated with 'gunk', the Power Supply heats up.

The more heat, the more the Power Supply strains to keep up with the call for power.
Eventually components inside the Power Supply fail, and the Power Supply itself fails.

The inside of the computer, as well as the inside of the Power Supply, should be cleaned on a regular basis as needed.

The computer should be unplugged from power, computer case open, and Anti-Static precautions followed before using the air.

[Q-tips can also be used to help remove a heavy buildup of 'gunk'. The Q-tips are just used to break the 'crust' of the gunk, and the can of compressed air can then remove it]

B) Low quality Power Supply
Low quality components are used inside the Power Supply.

1) Gauge (Size) of wiring is too small.
2) Low quality Electrolytic Capacitors
3) Low quality Rectifier Bridge
4) Low quality MOSFET's

Just to name a few components.
Everex seemed to be a quality manufacturer of pre-built computers, from my research.
They typically used generic Power Supply's that were of average quality.
(Management of the company seems to have been Everex's downfall)

If the Power On switch is bypassed and the Power Supply comes on, the problem is the Power On switch.

[One generic Power On switch that I have found fits many computers, ]

If the Power On switch is bypassed, and the Power Supply does NOT come on, the problem is the Power Supply.

The Power On switch is bypassed, using a jumper wire in the ATX main power cable connector.
[Has nothing to do with the Power On switch directly]

I don't know if your model of Everex computer used a 20-pin, or 24-pin ATX main power cable.

Typical 20-pin ATX main power cable,

Typical 24-pin ATX main power cable,

The Green wire you see present in both ATX main power cables, is the Soft Power On wire.
This is BRIEFLY connected to any Ground wire.
ALL Black wires you see are Ground wires.

The Voltage present is 5 Volts DC.
Two C cell flashlight batteries produce 3 Volts DC.

There is a proper method for doing this procedure, that I would like to outline before you attempt it.
Should you wish to attempt this procedure, please state so in a Comment.

Even with the model number of your Everex desktop computer, I may not be able to give you exact guidance in opening your computer case.

With your patience, and our communicating back, and forth using Comments, I Can guide you in opening the computer case.

[Computer UNPLUGGED from power. Anti-Static precautions followed once the computer case is open]

Jun 28, 2010 | Computers & Internet

1 Answer

The green power light on the PSU is on but the machine will not power up PSU is an HP5188-2627. The machine (HP m7580uk) has been on for an extended period of time but was working fine until it was finally...

Power supply failure, or the Power On switch. (Behind the Power On button)

My money's on the power supply failure.

It's the leading case of computer failure. The power supply is the 'Heart' of a computer. (Processor is the 'Brain', Motherboard is the 'Building Block')

Computer was on for an extended length of time? Was the computer ever turned off, and the inside of the computer cleaned out on a regular basis?
(Power supply also)

Normal procedure is to unplug the computer from power, open the computer case, and use a can of compressed air for computers.

Power supply light is on?
This is what is going on.

Computer power supply's are rated in Wattage, for power.
Voltage times Amperage = Wattage

The HP 5188-2627 power supply, supplies three main voltages. It has three main voltage power rails.

1) The 3.3 Volt rail
2) The 5 Volt rail
3) The 12 Volt rail

Your power supply has a weak voltage rail.

A) ALL the lights use less than 1 Watt of power.
B) EACH fan uses 2 to 3 Watts
C) A typical Processor uses 55 to 125 Watts.

There isn't enough power from the power supply to turn the Processor on.

Solution is to replace the power supply.
It may seem a little daunting for someone replacing a computer power supply, the first time.

After you have replaced one, it becomes easier.
Essentially you are just opening the computer case, unplugging the power cables from the power supply to the various hardware components, and removing the power supply.

To install just reverse these steps.

The power supply in your computer is a 300 Watt power supply. (Maximum wattage)

The size, and shape of the power supply, is one that is used in over 90% of personal computers.

What I would I recommend for a replacement?
Not one of the cheap quailty Hi-Pro's that HP used, that's for sure!

An OCZ StealthXStream 400 Watt is what I would recommend.

1) It will fit
2) It has a 140 Millimeter fan compared, to the 80mm fan that your old power supply has.

A larger fan means it will run quieter, due to the fact that it won't have to turn as fast, in order to put out as much air.
Will actually put out more air than that 80mm fan, and will spin slower.

3) Has two 12 Volt power rails.
One 12 Volt rail can deliver 17 Amps.
The other 12 Volt rail can deliver 14 Amps.

You can add the two 12 Volt power rail Amp's together, for 31 Amps.

Means less strain for the power supply, to keep up with the tasks.
(Your old power supply probably has an 18 Amp, 12 Volt power rail)

4) Has all the power cables you'll need.

5) Price, and reliable quality.

This is one place that carries them,

There are other places also. Not advertising for the above website, nor the power supply manufacturer.
Just my personal preference, based on experience with both.

A computer only uses the power it needs, and NO more.
If you install a 1000 Watt power supply in your computer, and the computer only needs 100 Watts, it only uses 100 Watts.

(Surfing the internet typically uses 100 Watts of power. Like a 100 Watt light bulb)

This may help guide you in replacing the power supply,

Jan 03, 2010 | Computers & Internet

2 Answers

Not booting up showing green light wont show on screen

Try to reinsert the RAM! Remove it, clean it and insert it back!!!

hope it will work!!

Dec 19, 2009 | HP Compaq Presario SR1610NX (ED865AA) PC...

1 Answer

Dead Computer

Is the fan of the power supply still circulating?

If not, your power supply needs replacement.

Jul 24, 2009 | Okia 420w UL Approved ATX Computer Power...

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