Question about Dell Dimension 5100 (D51L1) PC Desktop

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Nothing happens Dell 5100. I push the power button and nothing happens. The green LED on the MB is on. I checked the power supply by jumpering green to black and can faintly hear the case fan runnning. But pushing the power on button causes absolutely nothing to happen. rogercoldiron@msn.com

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  • 1022 Jul 05, 2008

    I can't find a fuse inside the power supply. Could it be under the board? I haven't taken it out of the power supply.

  • 1022 Jul 05, 2008

    CMOS battery is good. I've removed and reinstalled everything plugged into the MB. Is there a way to tell if this is a MB problem or a power supply problem before I buy either? Also, any idea where I can get a power supply that will fit?

  • Anonymous Mar 31, 2014

    Nothing happens when I push the power button

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10 Answers

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I recently had a power outage due to a winter storm. I attempted to power up my 5100 without any luck.
I was told by two co-workers and one of the Fixya folks that it was the power supply unit. I had the same green LED light on the mother board. I brought a new power supply unit and a power supply tester which confirmed that the unit was bad. Replaced with the new one today and I'm up and running again,

Posted on Mar 05, 2009

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  • Master
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First of all i am having a doubt on the supply from the power switch to the USB connectors to the MB?

another check.

are you sure the processor fan is running.

if ok then remove the MB and place it on a some cloth or non conductor and then boot the board.

check if it boots.

if not get back to me with results.

while replying please mention the name of the expert to whom you are replying.

Posted on Jul 05, 2008

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*********** board needs a replacement.

Try doing a flea power by unplugging the power cable and diconnect all the peripherals attached to it then push the power button on for 30 seconds that will release the static power from the board itself, reconnect the power cable monitor and keyboard, mouse turn on and see wwhat happens it should turn on thats a very common issue with dell desktop commuters

In case its not on then the motherbord is the suspect.

Posted on Jul 05, 2008

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Maybe the push button switch is defected ,the solder of the switch is brittle , or crack or cold,try to resolder the switch, if not change it with new one.I incounter like this problem before in the switch , i only resolder the joint then its ok,,try this also maybe canhelp...

Posted on Jul 05, 2008

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  • Dell Master
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It is recommended not to open the power supply. If it is the PSU, you should test the power supply using a multimeter on connectors first, and then eventually replace the whole unit.
Generally, when the PSU is gone you do not get any power (no fans, no power to disk drives etc.).
If fans are running it is likely to be something else (eg motherboard) Try removing RAM modules, disk connectors and PCI cards and putting back in place only one RAM module and eventually video card if video is not integrated with MBoard. If computer does not start with this minimal set of devices, and there is power coming to motherboard, then it is likely to be the motherboard.

Posted on Jul 05, 2008

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Your pc is full of
powder? , if yes please clean it.
First check the memory ram installed in the mainboard, do you hear some sound if you take off it?
2 replace the power supply, problably it's the problem, if this not work, the problem is the mb or the vga installed, if also this not work the problem is your cpu.
Sergio


Posted on Jul 05, 2008

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Have you installed anything new lately? Have you had any storms or power surges in the area?

Things to try:

Replace CMOS battery.
Replace Power Supply.
Try different memory modules.
Remove and re-install all cards on the MB.

Posted on Jul 05, 2008

  • Georgia B
    Georgia B Jul 05, 2008

    Look for bad or bulging capacitors on the motherboard.

    Click Here for some help on what to look for.


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U must have a blown fuse in the power supply box(replace fuse) should work fine

Posted on Jul 05, 2008

  • chris07551 Jul 05, 2008

    full of powder hahahaha what a joke hahaha love u guys

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Chk the 4 LED on the back of the computer labeled ABCD, and let me know the status?

Posted on Jul 05, 2008

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  • Legin Varghese
    Legin Varghese Jul 05, 2008

    LED status check..
    1-1-3 NVRAM write/read failure. Run the System Set tests in the Dell Diagnostics. If the program does not load, call Dell for technical assistance.
    1-1-4 ROM BIOS checksum failure. Run the System Set tests in the Dell Diagnostics. If the program does not load, call Dell for technical assistance.
    1-2-1 Programmable interval timer failure. Run the System Set tests in the Dell Diagnostics. If the program does not load, call Dell for technical assistance.
    1-2-2 DMA initialization failure. Run the System Set tests in the Dell Diagnostics. If the program does not load, call Dell for technical assistance.
    1-2-3 DMA page register write/read failure. Run the System Set tests in the Dell Diagnostics. If the program does not load, call Dell for technical assistance.
    1-3-1
    through
    2-4-4 An installed memory module is not being properly identified or used. Make sure that a memory module is installed in one of the memory module sockets on the system board. The computer will not function unless at least one memory module is installed.
    3-1-1 Slave DMA register failure. Run the System Set tests in the Dell Diagnostics. If the program does not load, call Dell for technical assistance.
    3-1-2 Master DMA register failure. Run the System Set tests in the Dell Diagnostics. If the program does not load, call Dell for technical assistance.
    3-1-3 Master interrupt mask register failure. Call Dell for technical assistance.
    3-1-4 Slave interrupt mask register failure. Call Dell for technical assistance.
    3-2-4 Keyboard controller test failure. Run the Keyboard Controller test in the Dell Diagnostics.
    3-3-4 Display memory test failure. Run the Video Memory test in the Dell Diagnostics.
    3-4-1 Display initialization failure. Run the Video tests in the Dell Diagnostics.
    3-4-2 Display retrace test failure. Run the Video tests in the Dell Diagnostics.
    4-2-1 No timer tick. Call Dell for technical assistance.
    4-2-2 Shutdown failure. Call Dell for technical assistance.
    4-2-3 Gate A20 failure. Call Dell for technical assistance.
    4-2-4 Unexpected interrupt in protected mode. Call Dell for technical assistance.
    4-3-1 Memory failure above address 0FFFFh. Run the System Memory tests in the Dell Diagnostics.
    4-3-3 Timer chip counter 2 failure. Call Dell for technical assistance.
    4-3-4 Time-of-day clock stopped. Call Dell for technical assistance.
    4-4-1 Serial port failure. Run the Serial/Infrared Ports tests in the Dell Diagnostics.
    5-1-2 No usable memory. Run the System Memory tests in the Dell Diagnostics.

  • Legin Varghese
    Legin Varghese Jul 05, 2008

    If all the led on the back are down (ABCD) replace the power supply.



    Thank for using Fixya.

  • Legin Varghese
    Legin Varghese Jul 05, 2008

    If all the led on the back are amder in color (ABCD) replace the power supply.

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view your manual on where to find this adapters in your board.

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