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POWER REPLACED POWER SUPPLY IN GATEWAY PERFORMANCE 1300. COMPUTER WILL NOT TURN ON. JUST THE LIGHTS FOR THE "ON" BUTTON AND THE LIGHTS FOR DRIVES FLASH. WHAT NEXT?

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Make sure you made all the connections properly. I'm not sure if the motherboard on that computer has the four pin aux power supply for the processor, but if it does and you didn't hook it up, you won't get anything. It's a square shaped connector with yellow and black wires. Some power supplies don't have this connector and will not work on a board that requires one.

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Gateway computer power light flashes before booting up.


Hmm. I wouldn't have thought it had anything to do with pressing the button. It sounds more like a failing power supply or lack of current for startup. Did you make sure you plugged the power into the video card power connector (if it has one)? I know it worked ok at first but a heavier load can cause older or under-rated power supplies to fail soon after. Just a thought.

Dec 16, 2013 | Gateway GT5662 Desktop PC

1 Answer

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

My computer died and won't turn back on.... when i press the power button i get the power led light for a split second then it goes off... nothing else turns on such as the fan or hard drive... it will not


This sounds like a power supply failure inside of your desktop.
If you're good with a screwdriver, you can order a replacement power supply from Gateway and replace it yourself or you can take the desktop in for service.
On the Gateway web site support page, it provides you with all of the equipment installed within your desktop including the part numbers of the power supplies used.
The power supplies listed are:
Power Supplies
grn_arrow.gif100889 - 300-Watt Power Supply
grn_arrow.gif100929 - 300 Watt Bestec Power Supply
grn_arrow.gif103563 - 300-Watt Power Supply



Dec 26, 2010 | Gateway GM5072 Desktop PC

1 Answer

Gateway mx6448 Notebook will not power on, Red LED flashes 4 times when power on button is pressed then nothing happens. It is the same with only the battery. LED will not flash if I have only the power...


There can be many things associated with no power to the computer.
  • The outlet into which the computer is plugged may be inoperative.

  • The surge protector you are using may be inoperative.

  • The power cable may be loose or damaged.

  • An internal device may be damaged.

  • The power supply may be inoperative.

Basic Troubleshooting Power to the Computer
There may not be a consistent flow of power to the computer.
  1. Verify that the outlet into which you are plugging the computer is operational.

  2. If you have the computer plugged into a surge protector, plug it directly into the outlet.

  3. Verify that the power cable is plugged securely into the back of the computer.

  4. If you have a monitor with a removable power cord, swap the power cords between the monitor and the computer.

Note: If you recently added a new hardware device prior to experiencing the no power issue, turn off the computer and remove the newly added hardware. If there is still no power, reseat all the other cards and cables in the computer to verify that all other devices are seated securely.
Resolving Power Supply Issues
  • External Device Conflicts
  • There may be an external device causing the computer not to turn on properly.

    1. Before continuing, verify your computer is turned off.

    2. After you have established that adequate electricity is going to your computer, verify that the voltage switch on the back of the power supply is set correctly. The small red switch is to be set to the 115-volt setting.

    3. Remove all external devices except the monitor and turn on the computer. If the fan on the back of the computer now spins, turn off the computer. Plug in the external devices one at a time and turn on the computer after each device is added.

    4. Note: If you removed all external components and the fan on the back of the computer does not spin, the problem is with something inside the computer.

  • Internal Device Conflicts
  • This helps determine if the issue is a damaged or badly seated component.

    1. Verify that the computer is turned off.

    2. Remove the case from the computer.

    3. Remove all the red, yellow, and black power connectors from each floppy disk drive, CD-ROM drive, and tape backup unit that is in the computer. The only devices connected to the power supply are your hard disk drive and motherboard.

    4. Turn on the computer and verify that the fan on the back of the computer spins. If it does not spin, turn off the computer.

    5. Remove the power connection from the hard disk drive and reconnect power to one floppy disk drive. Turn on the computer and verify that the fan on the back of the computer spins.

    6. Reseat the power connection from the power supply to the motherboard. Turn on the computer and verify that the fan on the back of the computer spins. If the power has been restored, turn off the computer and reconnect the power connections to the devices. Test the computer for power after reconnecting each device.

  • Power Switch
  • The power switch may not be functioning properly.

    1. You may need to open the case and readjust the power switch.

    2. Locate the control panel inside the computer and remove any screws holding it in place.

    3. Turn on the computer with the control panel removed by pressing the button on the control panel that corresponds to the power button. If the power supply fan spins and/or the computer turns on, put the control panel back in its place. Try to turn on the computer again.

  • Test Switch and Diagnostic LED
  • Note: Not all power supplies have a test switch and diagnostic LED.
    Certain power supplies have a test switch and LED to help better troubleshoot the device. The green LED is always on when the computer is powered on. If the computer is not receiving power please perform the diagnostic test below.

    1. Verify that the computer is turned off.
    2. Remove the case from the computer.
    3. Remove all of the red, yellow, and black power connectors from each floppy disk drive and ROM drive and the tape backup unit (TBU) that is in the computer. Remove all power connectors from the motherboard. The only device that needs to be connected to the power supply is the hard disk drive.
    4. Press and hold the test switch for five seconds on the power supply, and then verify that the green light on the power supply comes on.
    5. If the light comes on:
      1. The power supply is good and something that was plugged into the power supply is causing the computer to not turn on.
      2. Plug devices in one at a time, testing with the test switch between each device to determine what is causing the power issue.
      3. If all devices are plugged in and the light is working, the connections may have needed to be reseated, or it is possibly a power switch issue.
      4. Go to the power switch section of the power supply checklist for additional troubleshooting steps.

    6. If the light does not come on:
      1. Disconnect the power from the hard disk drive, and then plug in power to the CD-ROM drive and determine whether the light comes on.
      2. If it does, follow the preceding information - "If the light comes on."
      3. If the light still does not come on, contact Gateway Technical Support.

    7. Confirm that power from the power supply is connected to the motherboard. Remove all cards and cables from the motherboard, and press and hold the test switch for five seconds on the power supply and determine whether the green light-emitting diode (LED) comes on.
    8. If the LED comes on, put the devices back in one at a time, testing between each device to determine what is causing the issue.



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Dec 02, 2010 | Gateway MX6448 Notebook

1 Answer

After a power outage, tried to power computer. All I got was flashing keyboard and power light while I held in the power button. As soon as I let go, everything goes dard. No start up sounds or anything....


Sounds like it could be the power supply was damaged from the power outage. If you have another PC you could pull the ATX power supply out and install it in the gateway and see if it boots up. Power supplies are fairly inexpensive so look for an aftermarket one...buying a replacement from Gateway will cost alot more. If the power supply turns out to be good then remove one device at a time the try to boot up. Sometimes a bad cd-rom drive or harddrive can cause a problem. My best guess it is the power supply.

Sep 10, 2009 | Gateway 560GE PC Desktop

2 Answers

Gateway m-6750 power light and wireless light flashing


Try logging in in safe mode.
Try entering the BIOS and resetting to default values.
Try booting up from your CD drive

Aug 26, 2009 | Gateway M-6750 PC Notebook

2 Answers

Gateway computer does not turn on


Without seeing the machine, I'm thinking you have a motherboard problem. But try these troubleshooting steps before throwing in the towell:
Open the case and disconnect the CD cable. Now try it. If it still doesn't work, disconnect the hard drive and try it.
Let me know what happens. I've seen CDs mess up a system like this. I many times will swap out the power supply, but I'm thinking with the lights flashing, its a more serious problem.

Jun 23, 2009 | Gateway 500GR PC Desktop

1 Answer

Check Power Supply


Yes the orange lite usually indicates that the computer does not have enough power to start it. I dont think theres anyway around it, youll have to get a new power supply

Apr 11, 2009 | Computers & Internet

2 Answers

My gateway is not turning on!?


The most likely possibility is you need to replace the power supply. If you have a power supply tester you can check it. If not you may want to borrow or purchase a new one. They, for the most part, are not that expensive. I hope this helps. Joe

Nov 25, 2008 | Gateway GT4016 Desktop PC

1 Answer

Orange Power light flashing


Most likely a power supply failure. It apears that the power supply is not putting out all necessary voltages.

Replace the power supply

Sep 02, 2008 | Gateway 556GE Intel Pentium 4 630 3GHz(HT)...

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