Question about Dell Dimension 4400 Power Supply ** FREE ** (DE4400300WB) Power Supply

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Computer doesn't come on.

The only lights that come on are one green one on the motherboard and the one on the power button. The four little lights on the back do not come on, no fan, nothing.
Would this be the power supply, motherboard, or something else?

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  • mtennant Oct 09, 2008

    What does the FixYa headline "Dell Dimension 4400 Power Supply ** FREE **" mean?

  • aweaver414 Dec 08, 2008

    same issues on my Demension 4400, flea light is on, no fans, no hard drive start, no bios beeps, just quiet high pitched sound from power supply.

  • Dick
    Dick May 11, 2010

    There is no way to tell for sure without further testing. Replace the memory one piece at a time. Reseat all components you can and try again.

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Easy check is: power the system off. Unplug the power supply from the outlet. Hold the power on button in for at least 10 seconds. Remove the CMOS battery. Reconnect the power supply to power. Attempt to power up. See what happens. If it comes up and asks for you to set config, power down, unplug the power supply and hold the power on button for 10 secs. Replace the CMOS battery with a new one (CR2032 button battery...about $5 for 2 in the Wal-Mart photo dept) and power on. The reason for the repetition is to reset the BIOS.

Posted on Jan 22, 2010

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Problem: Your motherboard circuit has been cut.

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Symptoms: Flashing green light on both motherboard and power supply. System will not power on.

Solution:

Step 1: Ensure that both the power supply and the motherboard lights are flashing green, not solid or off.
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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.

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