Question about HP m7170n PC Desktop

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Computer not starting up... Power supply green light on!

I have exactly the same problem! I don't know much about computer hardware... Which Motherboard would be a good upgrade?

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  • martyrobitai Jul 17, 2009

    Ok fine, let me repeat my question: Which motherboard would be a good upgrade?

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Then change yr motherboard its the easiest and they r fairly cheap

Posted on Jul 17, 2009

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1 Answer

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It is probabley the power supply is bad the amber light should be green Get yourself another power supply and see if that don't fix your problem

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I would need to know what all you are trying to run in your computer to offer much assistance, but hot plugging power cords in computers is a good way to fry the motherboard. It sounds like you don't have a big enough power supply for everything you are trying to power, so that when you connect enough of the power plugs, the supply shuts down from trying to draw to much current.

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Test your PSU or replace it if your power supply units fan is not working your PSU is faulty

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect/ boot up a computer hard drive

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them there probably old and faulty
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Green blinking light on power supply. Computer will not power on. Power supply appears to be good because I connected black and green leads from motherboard connector with a small piece of wire, and the...


One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect your hard drive

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

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1 Answer

Green lights...no power. HELP!


This could be a problem with your power supply. If the motherboard sees that the voltages from your power supply are low, it will turn itself back off.

You can test your power supply by unplugging all of your internal power cables, ground out the green wire on the 20-pin/24-pin ATX connector and check your yellow (12v), red (5v) and orange (3.3v) wires. If the voltages come back more than 10-15% off, you will most likely need a new power supply.
Even if you have good voltages using the test method above, it is only an indication that your voltages are good at zero load. Your power supply may still fail under normal load. If you have recently added any hardware to your computer, remove it and try again. If this still doesn't work or you haven't added any hardware recently, replace your power supply.

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1 Answer

Green light lit but will not start, no fans running


Without further knowledge of it's previous condition, I would say the power supply is bad. There are multiple rails of voltage in a power supply, while one may be functioning, a 2nd is not and therefore it will not pass its own pre-test and therefore will not function as a whole. I had the same exact description recently, I replaced my power supply and it was functioning perfectly. If there is another computer in the house with the same watt/voltage power supply, try swapping it out.. if the computer starts, the power supply is your problem.

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Computer will not power on


Regarding the blinking green light on power supply for hp a430n...I've had that happen as well when the computer is turned off for an extended period of time. It would not immediatly power up when plugged in to power. Hitting it and beating on the button didn't help either.

However, after calming down, I noticed that when I unplugged the computer that the light continues to blink, but gradually fades and goes out. So, I thought that since power supply holds a charge after being disconnected as can other components inside a computer that I would assume the converse: It needs to power up to "full charge" as well. In my case, I was right.

All I did was plug the computer in and leave it alone for about 20 to 30 minutes, go sit and cuss for a while. When I came back and checked it after that time, the front panel blue light was on and the green light on the power supply was glowing steady. The computer started right up! Thank goodness...stopped cussing.

If it hadn't, and I had tried all the resets listed above, I would have bought a new power supply too...but not this time!

Oct 21, 2007 | HP Pavilion a420n PC Desktop

1 Answer

Help needed.....


Hi Octane, If you?re not getting any beep codes then something real basic is wrong. To start off I would check the following: -check the new power supply and ensure it is designed for your motherboard. -check the power supply connections to the motherboard, the connectors should mate up exactly to the motherboard connector. -check for shorts (mounting screws against capacitor leads are common), correct grounding and so on. Any of those can cause the same symptoms. -test the power supply in another computer or if not available you can generally pickup an inexpensive tester for $10 to $15 at a computer store that sells parts. -make sure your motherboard is designed to accommodate your processor. I would expect a beep code for this but you never know. Let us know how things go and please don?t forget to rate the posting.

Jan 04, 2007 | Foxconn (865G7MC-ES) Motherboard

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