Dell Studio 540 won't power up

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Dell Studio 540 won't power up

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I have a Dell 540 Studio, running Windows 7.

Last night, I went to bed and the computer was in sleep mode. Everything was working fine. But then I woke up this morning and the computer will not power up at all.

1. I tested the power cord. It works.

2. I tested the outlet. It works.

3. Monitor and all other devices have power.

4. Green light is ON, on the back of the tower for the power supply unit.

5. I unplugged everything (including the power cord) except the keyboard and monitor, held down the power button for 1 minute, then I plugged in the power cord again, tried to power up and still, I got nothing.

6. The fan will not spin when I first plug in the power cord into the power supply unit.

I'm at a loss for why all of a sudden the computer will not work. The computer has no extra parts and the hardware configuration is exactly the way it came from Dell. This computer is not used for any intensive applications other than Google Earth, Open Office writing, and surfing the internet.

What do I do next? How do I fix this issue?

All Replies
  •  e3_e3 

    Check the reading of the power button LED, is it Steady White, Blinking White, Steady Amber, Blinking Amber?

    The Studio 540 Troubleshooter is HERE

    Are there any 'Beep's, or error messages, if there are, please post the exact text of them?

    Bev.

     

    If my answer was helpful, please use the 'Did this answer the question' and click: Yes
    Forum Member since 2001
    I am not employed by Dell

  • The button on the tower has no light indication at all. The GREEN LIGHT is ON for the back of the power supply though.

    Also, I can't hear any noises when I press the power button to turn the computer on.

    Thanks.

  • e3_e3 

    As the power switch LED is not lite, this could indicate a power supply failure.

    Does the power supply fan work?

    Try removing the power cord and hold power button in for about three minutes, reconnect power cord and power system on and see if this makes a difference.

    No difference, try the following, if you are comfortable working around computers:

    Note: The only 100% method of testing a PSU, is to install a know working power supply.

    Unplug the cord from the power supply, hold the power button in for about 15/20 seconds, open the case, unplug the 24-pin power connector from the motherboard and jump the Green wire to one of the Black wires, reconnect the power cord and power the system, if power supply's fan and the hard drive run, then the PSU should be good.

    Note: Do not remove any wires from the plug, use a small piece of wire or a paper clip as a jumper.

    The Studio 540 Service Manual, is HERE

    Bev.

     

     

    If my answer was helpful, please use the 'Did this answer the question' and click: Yes
    Forum Member since 2001
    I am not employed by Dell

  • I tried the first thing, by removing the power cord, holding down the power button for 3 minutes and reconnecting. It produced no results.

    How do I 'jump the wire' for the second method?

    I have the 24-pin unplugged. I see one green wire going into the connector, and may black wires.

    Do I take the paper clip and put one end into the green, and then the other end into one of the black wires on the cable? Then remove the paperclip after it has been jumped and plug the connector back into the motherboard and then try to start it again?

  • e3_e3 

    Take a paper clip and straighten it out and then bend in the shape of a U, push one end into the green connector and the other into any of the black connectors, touching the metal inside the plastic housing, to complete the circuit and see if the hard drive and fan work, leave the jumper connected until the testing is complete.

    Bev.

     

    If my answer was helpful, please use the 'Did this answer the question' and click: Yes
    Forum Member since 2001
    I am not employed by Dell

  • Ok, I did exactly what you said and the power supply turned on and the fan came on. So I pulled the paperclip out and it stopped.

     

    What does this mean, or what can I do next then?

     

    Thank you.

  • I forgot to mention that with the paperclip trick, the hard drive also started up.

    So does that mean my harddrive and power supply are ok?

    How do I test other things now?

  • e3_e3 

    As the power supply seems to check out, again remove the power cord, hold the power button in for several seconds to discharge the residue power, reconnect the 24-pin connector to the motherboard.

    Remove all PCI cards from the system, take out the video card [if applicable], disconnect power & data cables from all drives. 

    Reconnect the power cord and  power system on, see if you get a different LED indication on the power button, or 'Beeps'.

    No difference, remove the memory from the system and try again.

    Still shows no signs of life then you are looking at a motherboard replacement & maybe a processor.

    Note: The processor could have failed, but the only method I know of checking it, is to install it a compatible working PC, or use a known working processor.

    Bev.

     

    If my answer was helpful, please use the 'Did this answer the question' and click: Yes
    Forum Member since 2001
    I am not employed by Dell

  • I tried all of that.

    I unplugged the power cable and discharged the system.

    Then I removed the video card and tv-tuner card.

    Then I disconnected the power and data cables going into the hard, as well as the dvd player.

    Then I plugged in the cable again and tried to power up, I got nothing. No lights came on for the power button.

     

    Then I unplugged the power cable, discharged the motherboard again.

    Then I removed all 4 memory sticks that were plugged into the motherboard.

    Then I plugged in the cable again and tried to power up, I got nothing. No lights came on for the power button.

     

    I'm guessing that means I need to order another motherboard and/or processor in order to get the computer up and running again? I don't understand how it could just go bad like that. I had a motherboard on my Dell Laptop go bad recently too, and I hard ever use my laptop. Probably less than 50 hours total. And for this computer, it's always been in a cool room, and I don't any truly intensive programs.


    Is there any way to test whether or not it's the motherboard and/or CPU that is causing this problem?

     

    Thanks.

  • e3_e3 

    The only method I know of checking the processor, is to install it a compatible working PC, or use a known working processor.

    But, as very few processors fail, the prime suspect should be the motherboard.

    Bev.

     

    If my answer was helpful, please use the 'Did this answer the question' and click: Yes
    Forum Member since 2001
    I am not employed by Dell

  • Dang. That is frustrating, as the motherboard will cost quite a bit money. It's especially frustrating since I just had a motherboard fail in my Dell Laptop Inspiron 1520 a few months ago. I think I am through buying Dell computers.

    Thanks for your help today. Where can I find an exact replacement motherboard?

  • e3_e3 

    A  Dell OEM refurbished Studio 540 motherboard can be purchased from HERE

    You could try browsing eBay for a Studio 540motherboard that costs less.

     Unfortunately, while you can make an informed diagnosis, sometimes computer troubleshooting is diagnostics by substitution.

    Bev.

     

    If my answer was helpful, please use the 'Did this answer the question' and click: Yes
    Forum Member since 2001
    I am not employed by Dell

  • Ok, thank you again for your help. The cheapest 540 motherboard (Part No. M017G) I could find is $99. I can't believe it failed in just 1.5yrs. What happened to computers lasting for years? I'm very frustrated with Dell.


    Thanks again for your help. It is much appreciated.

     

  • e3_e3

    Ok, thank you again for your help. The cheapest 540 motherboard (Part No. M017G) I could find is $99. I can't believe it failed in just 1.5yrs. What happened to computers lasting for years? I'm very frustrated with Dell.

    Thanks again for your help. It is much appreciated.

     

    e3_e3 

    You are welcome.

    You are not the only one, that's why I've started making my own desktops again.

    Bev.

     

    If my answer was helpful, please use the 'Did this answer the question' and click: Yes
    Forum Member since 2001
    I am not employed by Dell

  • Ok, I received the new motherboard.

    I popped in the motherboard, put in the new CPU, attached all the wires and I have the same problem! No power at all, no lights coming on for the front panel power button.

    I did the paperclip test again for the power supply and it powered up the hard drive just fine again. So both of those seem to be working.


    I have not yet plugged in the graphics card. Only the memory and the power cables that come from the power supply straight to the motherboard.

    Any ideas?