Question about Dell Dimension 5100 (D51L1) PC Desktop

3 Answers

Computer will not turn on at all. Dell Dimension 5100 desktop

Pushed start button on front panel and nothing happens. Checked power supply & it is okay. checked cord--Okay. Dell assistance was no help at all. Thanks for any help.

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  • tzane24 Feb 15, 2009

    Bought in 2005.

  • jim beckwith May 11, 2010

    How old is the unit ?

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I would unplug the power supply from the motherboard, wait a little while and then plug it back in.
Try to power everything back up and it should come up.

I am assuming you are getting a light on the motherboard that indicates power is being supplied?

Posted on Feb 15, 2009

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The computer will not turn on. The power supply green light is on but nothing happens when i attempt to turn it on.

Posted on Dec 02, 2009

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Try this! Open up your computer and re-seat the CPU and all other chips that can be re-seated! and check all the plug-in cards as well and re-seat them as well! Hope that helps!

Posted on Feb 15, 2009

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2 Answers

I have a Dell Dimension 8400 Series desktop that is totally dead. Nothing happens when power button is pushed. Of course it is plugged into a live outlet.


Possibly a bad power supply. Could aslo be bad hardware.

Depeding on how save you are with computers, depends on how far you might want to go with this.

But remove everything one at a time and try to start the computer. Until all you have is a motherboard, processor, fan, and power supply hooked up. If you are still not getting any power, try to swap the power supply first. If that doesnt work then either Motherboard or Processor.

Lastly, swap the power cable out to see if its a bad cable.

May 03, 2011 | Dell Dimension 8400 PC Desktop

1 Answer

After start button is pushed several low buzzes is heard


Better check that power supply & where it plugs in at out. Also,make sure all the connections are plugged in tight inside. Never assume that a replaced part is good & if you went after-market for the power supply, don't go super cheap. Buy a good one with a good warranty & the same if not more juice than the original.

May 12, 2010 | Dell Dimension 5100 (D51L1) PC Desktop

1 Answer

Dell 5100 will not turn on


Power "Outages" are not the problem, it is when it comes back on again,and the Power Switch is still ON, that's the problem, the "Inrush" current of reconnection, frequently "Blows" the Power Supply's, I suspect that is what has happened.. You probably need to replace your power Supply, simply open unit up, and remove PSU, via four screws at rear, and get a similar unit, they are relatively inexpensive, under $60.00 usually. Reinstall PSU and connect up all power plugs and you should be good to go.

Feb 28, 2010 | Dell Dimension 5100 (D51L1) PC Desktop

2 Answers

Has anyone solved the not starting issue for dell 5100?


I had the same problem and it turned out to be the Front I/O & Control Panel Assembly. I suspect that the USB ports had shorted out and took the whole card down. The not turning on problem was preceded by the USB ports failing. I couldn't figure out how to bypass the card to power the computer. Dell won't help if you are not under warranty (unless you purchase some additional support). I couldn't find a replacement board on Dell's web site but found some other vendors that sold them. I bought one for about $70 and it did the trick. There seems to be at least two similar model numbers for this card. I don't know if they are interchangeable or what the differences are. If you look on the card there should be a series of numbers. Look for an "X" followed by 4 numbers. In my case it was "X8682". This is the model number for the card. If you search for shopping sites with your Dell model and this card number you should find vendors to buy the card. I think this is a design flaw having the USB ports on the same connection as the on switch. It looks like many people have had this problem. One bad usb port and your whole system is taken down. My guess is that the average user is not going to be able to figure this out and will spend lots of money unnecessarily. For those comfortable opening up the case and covers (you can download the manual from the Dell site) and unplugging ribbon cables this is a fairly simple fix. Keep in mind the card won't come with any instructions. Make sure you follow power safety rules and ground yourself.

Dec 22, 2009 | Dell Dimension 5100 (D51L1) PC Desktop

1 Answer

Just come back from a 2 week holiday and my dell dimension 5100 was off but i usually have it on 24/7. having returned from holiday , when i press the power button nothing happens but the yellow l.e.d...


This model has had a very high failure rate. The amber led on front is on to show an error. This can be 1 of 3 things. 1. The power supply has went bad. 2. The motherboard is bad. or 3. The front control panel is bad. Since Dell used proprietary parts on this model you would need to contact them for replacement. www.dell.com will have the contact info. Hope this helps.

Sep 11, 2009 | Dell Dimension 5100 (D51L1) PC Desktop

1 Answer

No Power / Start-up


if the power button on the front of the tower has no indications, then you most likely have a failure of the power supply.

Open the tower, and inspect for burnt wires. If you find no burnt wires, remove all PCI expansion card and all external connections, then connect the power cord and try to turn on. If no power, then you will most likely need to replace the power supply.

It is the least expensive part to replace on a no power situation. If replacing the power supply fails, then the front IO panel (Power button board) is next, then the motherboard is the 3rd most likely part that may have failed.

May 17, 2008 | Dell Dimension 5100 (D51L1) PC Desktop

1 Answer

Not the power supply!


Hi

To help troubleshoot a problem, Dell Dimension 5100 has four diagnostic lights labeled "1," "2," "3," "4" on the front panel. When the computer starts normally, the lights flash. After the computer starts, all four lights lites solid green. The power button also lites solid green. If the computer malfunctions, the color and sequence of the diagnostic lights as well as the power button helps identifies the problem.

First, disconnect the power cord and remove all connections (Keyboard, Network, Mouse etc) as well as optional PCI Cards. Connect up the power cord (Monitor as well) and try powering the PC.
Check the diagnostic lights/system lights color and sequence and check the link below for more info (Assuming you have another system that can access internet)
Diagnostic Lights - http://support.dell.com/support/edocs/systems/dim5100/en/sm/tshoot1.htm#wp1120147
System Lights - http://support.dell.com/support/edocs/systems/dim5100/en/sm/tshoot1.htm#wp1114432

Reply with lights color and sequence as well as any beep codes and I will respond at best effort.

Mike

May 05, 2008 | Dell Dimension 5100 (D51L1) PC Desktop

2 Answers

Dell dimension 5100, power button has turned orange


If under warranty contact Dell? I had this same problem, a new motherboard and fan assembly fixed this problem. Bad capacitors on the motherbard.

Apr 12, 2008 | Dell Dimension 5100 (D51L1) PC Desktop

2 Answers

Dell Dimension 5100 Won't start up


Hi

First disconnecting the power cord and re-seat all connections (Keyboard, Mouse espercially). Connect up the power cord and try powering the PC.

To help you troubleshoot a problem, Dell Dimension 5100 has four diagnostic lights labeled "1," "2," "3," and "4" on the front panel. When the computer starts normally, the lights flash. After the computer starts, all four lights display solid green. If the computer malfunctions, the color and sequence of the lights identify the problem.

If the computer failed to start up check the diagnostic lights color and sequence and Check the link below for more info (Assuming you have another system that can access internet)
http://support.dell.com/support/edocs/systems/dim5100/en/sm/tshoot1.htm#wp1120147

Alternatively, contact Dell Support with the diagnostic lights color and sequence to raise a service call if the system if under warranty.

Mike

Mar 31, 2008 | Dell Dimension 5100 (D51L1) PC Desktop

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