Question about Dell Dimension 4700C PC Desktop
Is there any chance for you to check if the power supply blows air from inside of the power supply? If yes, on your motherboard, do disconnect the P1 cable or the main power supply cable that connects to the motherboard and the P2 cable which. and try to plug the power cord of the power supply and if the fan did not spin, power supply is the one causing the problem
You may also try to remove the RAM or memory card module from the motherboard and all of the PCI card connected to the motherboard. Try to turn on the system and check the power supply fan and the CPU fan if it will spin. If not then I recommend you to replace the power supply.
On the other hand, if the fan is spinning on the power supply after you remove all the RAM and PCI cards. And the power button light is flashing amber or solid amber color. Try to install RAM 1 by 1 to isolate the problem.
Let me know if the problem persist
Posted on Sep 24, 2009
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Posted on Jan 02, 2017
I just fixed a Dell 4700c with this exact same problem and it was the power supply. Also on Dells website they say that a flashing yellow light is a power issue. They suggest checking all your power connections. You can also unplug all the power cables to your drives just to make sure it isn't one of the drives that's gone bad and keeping it from starting. While this is highly unlikely I have seen it before.
If you have access to an atx power supply, you can do what I did. Just plug in the new power supply and see if it boots up. You don't have to remove the other power supply to do this. Just plug in the 2 power cables that go to the motherboard, no need to plug in any of the cables to the drives.
Posted on Jun 15, 2008
Let's make this really simple, though you are apparently knowledgeable enough to realize the answer,
without my intervention.
Knowing what we both know about the units and their present condition.
1. The 2400's board is dead.
2. The 4700C's network card and CD Drive (hence, the slots and/or inputs on the motherboard, and
therefore the motherboard are also dead.) I am willing to bet you that in another system, the network
card and CD actually work.
3. All Dell® system's are totally proprietary in the board design and even the placement and removal
procedures for all drives.
4. Neither system is state-of-the art, but you knew that also.
Since you know enough to protect for ESD I will take a shot and acknowledge that you could build from
a barebones kit a new unit, using any of the parts from the two systems that actually work and end up
with a brand new system that will work for you for an extended time period into the future.
Posted on Apr 17, 2009
Most indicative that the power supply may have failed and needs replacement.
Hope this helps.
Don't forget to vote
Posted on Apr 09, 2010
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