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Desktop does not power up but gives flashing amber at the power button.please help

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Your Computer is not POSTing, I recommend removing the BIOS/CMOS battery for about a minute then reinstall it in the correct orientation. This will reset the BIOS/CMOS, and bring the settings to defaults.
Clean your computer with a vacuum and paint brush, pay special attention to your CPU cooler, make sure sufficient airflow is achieved. Ensure all components are connected, clean the RAM fingers with tissue paper. Also do you hear the beep of the BIOS when a speaker is connected on the output pins. It's the pins that are located near the header for power and Hard drive LEDs.
Does your PC beep at you if you power on your PC without RAM installed, it should. If it doesn't then this confirms that your computer Mainboard is faulty.

However more often than not is your Mainboard that is faulty, the best thing to do is return it, if it is under warranty. If it is not under warranty the you will have to consider purchasing a new Mainboard.

Posted on Nov 06, 2010

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1 Answer

Flashing amber light


Hi, on most Dells a flashing amber light on the power button indicates a problem with the PSU or a short on the main power rail, if this is the case you should have 2 flashing lights as well, 1 & 3.

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A flashing Amber power button indicates a bad power supply. A solid amber means a motherboard failure or a failed component attached to the motherboard preventing post.
http://www.fixya.com/support/r4282412-find_no_post_diagnostic_information_dell

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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

If the LED Is SOLID amber, it is likely either a component connected to the Motherboard or a bad motherboard

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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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open up your system get a can of air and blow all dust away could be an overheating fault

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The power LED Flashing AMBER indicates the power supply in the tower has failed and needs replacement.
You can get a replacement here:
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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

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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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Is the amber light flashing on the monitor?

If so, you should get your power supply checked.

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