Question about Dell Dimension 5150 (DIM515MIN) PC Desktop

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Turning on computer

Cant turn computer on--power supply was tested and its fine--on button flashing yellow

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  • eilarla Jul 30, 2008

    How is this done?

  • Anonymous Aug 07, 2008

    this did not solve problem, any other suggestions

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  • 172 Answers

Ram faulty
if two ram installed remove one and see and then remove other one and replace by the first one you removed and clean ram before reinstalling in slot.
this will solve your problem

Posted on Jul 29, 2008

  • Arora Singh
    Arora Singh Jul 31, 2008

    THE RAM SLOTS HOLD RAM
    YOU CAN THE HOLD ON CLIP IS AUTOMATICALLY FIXED TO THE RAM WHEN ONE FITS THE RAM IN THE SLOT WITH A SLIGHT ON FORCE ON THE UPPER EDGE OF RAM INTO THE SLOT.
    IF YOU WANT TO REMOVE RAM HOLD THE END CLOPS OF THE RAM AMD APPLY MILD FORCE OUT WARDS . THE RAM POPS OUT.
    WHILE INSERTING RAM PLEASE SEE THE PUNCH AREA ON THE LOWER METALLIC STRIPPED SURFACE AND IT WHOULD FIT IN THE CORROSPONDING AREA ON THE SLOT


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Have a HP m7470n. The green power light in the back is constantly on. The power button flashes blue and orange (~3 seconds each). The computer wont turn on. When I unplug the cord and plug it back in, the...


In my case it turned out to be a weak power supply. It would work sometimes and not others. If stone cold, it would not boot. If I unplugged 1 thing, like the hard drive or the CD Roms, it would boot. Tested the old power suppy and it seemed to pass. But once I connected a new power supply, the computer has worked fine ever since.

Jan 08, 2011 | HP Pavilion m7470n (ER883AA) PC Desktop

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

My Dell Dimension begins to boot then sits there as if asleep


It sounds like it's probably the power supply. Computers require more power to boot up than they do to keep running, so if it's fine once it gets going, the power supply may just be dying. If you have a multimeter and know what you're doing, you can test the power supply connectors to see if any of them (especially the ones leading to the motherboard) are not giving the proper voltages.

How old is the computer?

May 27, 2010 | Dell Dimension 9200 PC Desktop

1 Answer

Green lights...no power. HELP!


This could be a problem with your power supply. If the motherboard sees that the voltages from your power supply are low, it will turn itself back off.

You can test your power supply by unplugging all of your internal power cables, ground out the green wire on the 20-pin/24-pin ATX connector and check your yellow (12v), red (5v) and orange (3.3v) wires. If the voltages come back more than 10-15% off, you will most likely need a new power supply.
Even if you have good voltages using the test method above, it is only an indication that your voltages are good at zero load. Your power supply may still fail under normal load. If you have recently added any hardware to your computer, remove it and try again. If this still doesn't work or you haven't added any hardware recently, replace your power supply.

May 13, 2010 | Computers & Internet

1 Answer

Power button flashes yellow and will not power up.


Try a different know good working power supply and only hook up the main power connector to the motherboard as well as the p4 connector. If you get power then you know that the original power supply is bad.

If you try another known good working power supply and you get the same yellow light then the motherboard is bad and would need to be replaced.

Jun 27, 2009 | Dell Dimension 3000 PC Desktop

1 Answer

Computer won't turn on


A flashing yellow power LED is an indication of a failure in the power supply. If under warranty, Dell should be replacing it. If out of warranty, then a 400/450 Watt ATX power supply should resolve the issue.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817182021

Apr 06, 2009 | Dell Dimension™ E510 PC Desktop

2 Answers

Gateway 500xl pc will not turn on power button is lit up yellow


A LOT of Gateway computers will go into this catatonic state because of a dead battery. The battery is on the motherboard -- it looks like a metal disk about 1" in diamter. Check it or replace it. This applies to laptops too (not the actual laptop battery, the CMOS battery -- a laptop will have one on the motherboard too)

Hope this helps

Mar 13, 2009 | Gateway 500XL PC Desktop

1 Answer

Pover up trouble


sounds like something is drawing down on your 12 volt supply drives or on board regulators. Try it without the drives connectged, and see if you can get the system to boot up(you'll just get a notice that your drives are unavailable, but you'll already know that, right?

got backup for your Dell?

Feb 15, 2008 | Dell Dimension 5100 (D51L1) PC Desktop

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