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Dell 4700 blinking yellow light - Computers & Internet

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  • 102 Answers

Its likely a failed fan. Do you hear any fans come on when booting the PC? New fans are ~$20 or less..

Posted on Nov 11, 2014

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Posted on Jan 02, 2017

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SOURCE: Dell 4700 desktop, will not boot up. Light remains

A solid Amber power LED is an indication of a motherboard problem. Remove any external connections and see if LED indications change. If no change, remove all PCI expansion cards, try again. If still no go, disconnect all drives, try again. If still no change, ensure the CPU heatsink is firmly attached (If loose you need to replace the retention module) If nothing loose and no changes from other steps, replace motherboard

Posted on Mar 11, 2010

eagle338
  • 4889 Answers

SOURCE: dell dimension 4700 blinking yellow light

You clearly have an SMPS(power supply issue). Not 3 days ago I worked on my dad's PC that had the same problem. I found that the board had some leaky caps, and the circuit board inside it partially burnt. I could get it working by replacing the caps, but dont know how long it will last(I'll be getting a new PC soon anyway). Its advicable you replace the power supply. Should cost you around 30-50$ at MOST!

Posted on Apr 08, 2009

  • 1 Answer

SOURCE: Dell 5150c shuts down orange flashing light

As a temporary measure, taking the side panel off the dell 5150c stopped it from shutting down, so in my case it was clearly a heat problem, as suggested by previous the poster. The following instructions assume you're comfortable replacing computer hardware components - do at your own risk!

The solution is to buy an 'air duster' and some thermal compound for the CPU heat sink. If your CPU fan doesn't sound healthy (mine didn't), also buy a new one (ca. £20 on ebay: search for G9474 ).

Read the service manual: http://support.dell.com/support/edocs/systems/dim5150C/en/sm/index.htm for details on how to install / remove the fan and heat sink.

Clean out dust from the heat sink with air duster. Remove the fan, and clean or replace (recommended). Also clean the grill in front of the fan. Clean off old thermal compound from the CPU / heat sink and replace with a thin layer of fresh compound. Replace heat sink and side panel and you're done.




Posted on May 12, 2009

  • 212 Answers

SOURCE: yellow light blink when powered up

that is the hard drive. does it work? If it does I wouldn't worry about it.

Posted on May 25, 2009

Sphynkter
  • 221 Answers

SOURCE: won't turn on only blinking yellow light

The blinking yellow light on the power button is almost always a power supply failure of some kind. You should try disconnecting the PC from the wall and letting it sit for 10 minutes to let all the power in the capacitors drain. This will do a mini-reset on the power supply. Plug the power back in and then try it again. If that doesn't work, find the 110/220V red switch on the power supply, unplug the power from the wall, flip the switch a few times, make sure it lands back on 110, then connect the power and try turning it on again. If those don't work, you'll need to replace the power supply unit.

Posted on Aug 04, 2009

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Apr 27, 2011 | Dell Dimension 4700 PC Desktop

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Dell 4700 desktop, will not boot up. Light remains


A solid Amber power LED is an indication of a motherboard problem. Remove any external connections and see if LED indications change. If no change, remove all PCI expansion cards, try again. If still no go, disconnect all drives, try again. If still no change, ensure the CPU heatsink is firmly attached (If loose you need to replace the retention module) If nothing loose and no changes from other steps, replace motherboard

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3 Answers

Won't turn on only blinking yellow light


The blinking yellow light on the power button is almost always a power supply failure of some kind. You should try disconnecting the PC from the wall and letting it sit for 10 minutes to let all the power in the capacitors drain. This will do a mini-reset on the power supply. Plug the power back in and then try it again. If that doesn't work, find the 110/220V red switch on the power supply, unplug the power from the wall, flip the switch a few times, make sure it lands back on 110, then connect the power and try turning it on again. If those don't work, you'll need to replace the power supply unit.

Aug 04, 2009 | Dell Dimension 4700 PC Desktop

1 Answer

No display and wont boot


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. Power supply is easier and cheaper to replace.





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Nov 12, 2008 | Dell Dimension 4700 PC Desktop

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