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My dell5150 pc has slow start up from cold.on/off button flashes amber.just fitted new power supply and still same.if you warm it up with hair dryer it works fine

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Temp AND humidity play a factor. You may have to either run a small heater near the PC which is not practical, or change the room that it is in. Also, even though it sounds silly, see how many plugs are connecting to the socket nearby. If there is alot, reduce the amount by atleast 50%

Posted on Nov 05, 2008

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Tower power button flashes amber but will not start


Flashing Amber power LED indicates a bad power supply.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817822008&cm_re=atx_power_supply-_-17-822-008-_-Product

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I haven't heard of a sensor that keeps it from starting when too cold. Usually in electronics, if it is a cold problem, there is a cold solder joint somewhere. When you apply heat, the joint solder expands enough to make contact and once electricity is flowing, the joint stays heated due to the resistance provided by the cold joint. Since the heat is applied to the power supply, I would say that the power supply is the problem again. If the power supply is still under warranty, I would exchange it or get my money back and go with a different name brand since you've experienced power supply problems with another model.

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If the power button on the tower is flashing Amber, the fault is the power supply. Replace the power supply and they system should work.
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P4 PC with Antec power supply won't start when ''cold''.


The first thing you should do is replace the power supply with another and see if the problem continues. if it does call me and we will work it out

Marc
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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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A flashing amber light means a power supply problem usually caused by a bad power supply. Replace the power supply and everything should work fine for you.

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The power light keeps flashing orange


I had my Optiplex GX520 at work shut down abruptly every time I turned it on it in the morning. This would always happen within the first 30 minutes. I would then get the flashing amber light. After starting the PC again, it would stay on all day (over 8 hours) without shutting down again. I found that the power supply was over-heating.

Two things need to be done. First, in order to get the amber light to stop flashing, un-plug the computer from the wall for 30 seconds then plug it back in. OR hold down the power button for 10 seconds or so. The light should stop flashing. Then press the power button again and the PC should start.

But why did it abruptly shut down in the first place? The power supply has a fan-speed-control circuit in it to keep it running slow and quiet when the power supply is cool. It gives the power supply lower voltage when the power supply is cold and higher voltage as the power supply gets warmer. This circuit either is not working correctly or the fan getting sticky over the years and needing more voltage to get it moving when it is cold. I found that the fan was not starting at all and causing the power supply to over-heat.


To keep the fan moving at full speed, I cut the wire to it and wired it to the +12v output directly. Not the fan goes at full speed all the time. And yes, it is nosier. But at work it doesn’t matter.

The best solution would be to just get another power supply from Dell if possible. Or buy a +12v, 70mm fan from Digi-Key and replace the original.

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Is the amber light flashing on the monitor?

If so, you should get your power supply checked.

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