Question about HP Pavilion a350n PC Desktop

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HP a350n not powering up.

There is a green light on the back of the power supply that keeps blinking. If I disconnect the power supply from the motherboard the green light stops blinking and stays on. It started doing this after we lost power for three hours. We have the computer plugged into a Belkin power strip. This is our first major problem with this pc. Please help.

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  • terry6136 Aug 24, 2008

    The green light does stay stable and "on" when you disconnect the power supply wires that come out of the power supply and go down to the motherboard. The power is good. 120V continous. When I disconnect the power cord from the computer and the wires are connected to the motherboard the green light will still blink, slowly.

  • ptrobio Apr 04, 2009

    have an HP a350n. I put the computer on standby and it shut all the way down. It will not fire up at all now, totally dead other than the green light on back. that light is blinking now. when I open the computer and unpluged the power supply from the mother board the light goes solid green. I pulled the battery and then put it back, still nothing..



    im thinking the power supply is bad...any help would be great.thanks

  • Phani Kiran Vayuvegula
    Phani Kiran Vayuvegula May 11, 2010

    Generally the light on the SMPS for HP computer indicates the proper power supply... it should be stable green... sometimes there would be a problem with led also...

    i juz want to know...is the power supply to the computer is continuous ??


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Unplug power and open computer and pull the small battery and wait 30 sec and replace
plug in everything and reboot
may have to re-enter cmos utility

Posted on Aug 25, 2008

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1 Answer

Hp computer green light keeps blinking


Green LED light on back of Power Supply?

(The power cable plugs into the Power Supply)

Bad Power Supply. Replace.

Need guidance? I can step by step you through it.
I need the Product Number, though.

This can be found on the Back of the computer, in the white
Service Tag.
P/N = Product Number

Post back in a Comment.

Regards,
joecoolvette

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was it dropped..?? the indicator light should b solid not flashing.. If you held the power switch in for several min an nothing Try plugging the cord directly into the wall. Do not use power strips as they may have failed.Toggle the voltage regulator switch from 115V to 230V then back again. If you are in North America, this switch must be on 115V. you may have a loose connection in the machine Lastly, you may need to go inside the case and confirm the thin wires running from the front power and reset switches are connected to the motherboard., to check be sure u are grounded an check all connections inside the computer... If the LED is still flashing, the power supply is probably bad.

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Try these suggestions:

<a href="http://h10025.www1.hp.com/ewfrf/wc/document?docname=bph06788&cc=us&lc=en&dlc=en&product=427167&dlc=en&lang=en#bph06788_section_2" >Troubleshooting Power Supply Issues</a>

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Remove the side pane to access your motherboard cables, etc. Locate the connector on your motherboard that contains the wires going from your power supply to your motherboard. It will be a large, rectangular connector with a lot of individual wires It is not a ribbon cable but should be located next to a ribbon cable connector andnext to a geen blnking light on your motherboard (when the power supply is plugged into the wall). Note: This green blinking light is in addition to the green blinking light on the back of the PC.

This next step is important: You have to disconnect the connector noted above from the motherboard WHILE the power suply is plugged into the wall. Wait a few seconds and plug it back in. The blinking reen light on the motherboard should now be a solid green light. The PC should now power up.

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Hello shapscomp

The blinking green light is likely your Ethernet card's LED. Is the blinking light located near your Ethernet (network) cable?

It sounds as though your power supply has failed. You may be able to purchase a replacement power supply for it.

Would you like some assistance in deterimining if that is the case?

Thank you
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