Question about Dell Dimension 5100 (D51L1) PC Desktop

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My dimension 5150 has had problems switching on for a few weeks. the power button light is flashing an amber colour...

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  • Astryder
    Astryder May 11, 2010

    dell has a color code sequence in back of the computer if you can see these, this would help diagnose your problem

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  • Dell Master
  • 998 Answers

A Blinking Amber or Yellow power button means that the power supply is receiving power from the source but is unable to properly distribute it to the components. This can be caused by a defective power supply or a defective motherboard. Just to make sure that nothing else is causing the problem, remove any PCI cards like modem, video card, sound card, etc... Remove the memory modules and disconnect cables to CD/DVD drives. Look at the USB ports to see if any are damaged. Here’s a link to the service manual for your model: http://support.dell.com/support/edocs/systems/dim5150/en/sm/tshoot1.htm#wp1114432


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Posted on Dec 09, 2008

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1 Answer

I have a Dell Dimension 5150 desk top computer which I have moved to another room & now won't switch on, just flashes an Amber light to the front of the hard drive. Is this something I can fix...


A flashing amber power LED indicates that the power supply is not providing the correct voltage.
  1. make sure if there is a voltage switch on the power supply that it is set to the voltage of your country (120 VAC for North America) maybe cycle the switch from 120 to 240 and back
  2. If the switch is set right and you are using a power strip/battery backup, by pass it and plug directly to the wall.
  3. Make sure the black and yellow 4 pin connector for the processor is connected on the motherboard.
  4. if all the above have no effect, replace the power supply in the tower

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1 Answer

Over the last few months our PC is difficult to start up - we have to keep pressing the on button sometimes 20 or more times while the amber light is flashing then maybe it'll start - could it be a faulty...


If it is not the physical start button and the power supply is OK something you can look for yourself is a blown capacitor on the motherboard. They should have flat tops. The one pictured here is from a Dell 5150 Connolly E187242 motherboard that I am currently working on and you can see that the top is not flat but rounded. I am not an expert and it could be something else but I feel this is worth checking out.
3b40ccf.jpg

Sep 13, 2010 | Dell Dimension 5150 (DIM515MIN) PC Desktop

1 Answer

My Dell Desktop Dimension 5150 does not start sometimes


loose connect or mother board problem (is your os & HDD is OK ?)

Jun 24, 2010 | Dell Dimension 5150 (DIM515MIN) PC Desktop

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PC will NOT turn on;flashing amber lights


The power LED Flashing AMBER indicates the power supply in the tower has failed and needs replacement.
You can get a replacement here:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817165004

Dec 20, 2009 | Dell Dimension 5150 Intel Pentium 4 w/HT...

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Only amber light is on when start...no green lights...


its a power problem. Your power supply is not giving enough power

Dec 08, 2009 | Dell Dimension 5150 (DIM515MIN) PC Desktop

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Blinking amber light and wont boot up.


if the power button was blinking amber, unplug your tower, and hold the power button for 30 seconds to 1 minute, to use any excess power stored in the capassitors in the pc. this was told to me by a dell tech, it is a small issue with the 3100=E310, and 5150=E510 Dimension desktops

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3 Answers

Dell dimension 5150 blinking amber lights


I have similar problem these days. After normal shutting down the PC, it can not be powered up again, the amber light blinks. A temp solution for my case is by doing these steps:

1. leave all monitor, network, keyboard and mouse etc. connected
2. disconnect the power, wait until green light and amber light dim.
3. pop up the CMOS battery, then put back in (better to check its remaining voltage, if not good, change a new one)
4. power amber light flash shorter and lighter
5. disconnect any USB connections like keyboard and mouse,
6. immediately connect keyboard and mouse back into USB ports
7. my pc powers up at this point, all green lights shining. Except it displays CMOS setup warnings, give me options to click either F1 or F2
8. I click F1, it goes into normal login XP

The only problem is I could not shutdown PC again, if I do, then I have to repeat 1-8. I have to use "Standby" instead, which I usually do.

Aug 31, 2009 | Dell Dimension 5150 (DIM515MIN) PC Desktop

1 Answer

Amber Flashing Power button on bootup


i would change the battery first of all. this is the reason for losing date and time

Jul 31, 2009 | Dell Dimension 5150 (DIM515MIN) PC Desktop

1 Answer

Dell Dimension 5150 automatically turns off


That flashing amber light is usually a sign the power supply is failed or is failing. I would suspect the power supply is the problem in yours. It is the better of the two problems connected with the flashing amber light..the other is motherboard is failing. Arrrr!
hope this helps (it takes a standard- oh say 350 watt 20-24 pin power supply unit.)
Hope an answer helps.
Please leave rating, thankyou

May 05, 2009 | Dell Dimension 5150 (DIM515MIN) PC Desktop

2 Answers

Dell Dimension 5150 will not boot. Flashes amber light


I had the same issue with my Dell Dimension 5150 and I replaced the front I/O USB Audio Panel and it booted right up.

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