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Wont boot after repeated power outages


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#1 Gnarltusk

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Posted 30 August 2017 - 10:37 PM

I know... "why didn't I use a surge protector?"

 

I KNOW! So, during hurricane Harvey we didn't have any lightning in my area but the power went out about 10 times in a few hours. It would return instantly and not my wife's pc wont boot. Nothing except the green light on the mobo.

 

I cannot see any visible shorts and I have already tried:

 

Switching the power supply

Switching the ram

Changing the cmos battery

Swapping the hard drive

Checked and re-applied thermal compound to the cpu

And took out the video card.

 

All to no avail. I am dreading that it could be the mobo, and maybe I just don't want to admit it. Any other ideas that I could try or something I could do to make a definitive diagnosis?


Edited by Gnarltusk, 30 August 2017 - 10:37 PM.


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#2 Gnarltusk

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Posted 30 August 2017 - 11:27 PM

To be clear, it will not power on at all, just a solid green light on the motherboard. I re-read the title and thought failing to boot and no power at all were totally different so I wanted to clarify,



#3 The-Toolman

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Posted 31 August 2017 - 10:42 AM

I know... "why didn't I use a surge protector?"

 

I KNOW! So, during hurricane Harvey we didn't have any lightning in my area but the power went out about 10 times in a few hours. It would return instantly and not my wife's pc wont boot.

When power outages occur in that frequency and using no surge protection any electronic device can and most times will fail.

 

I would disconnect everything and only install and connect bare minimum of components needed.

 

Leave power supply motherboard connectors plugged in and ram plugged in.

If no on board integrated graphics are available than install graphics card and any power cables needed by the graphics card and connect monitor and see if it will post.

 

No DVD drive or hard drive or anything else only bare minimum to display a post.

 

Also post type model of system and motherboard etc.

 

You have nothing to lose by trying at this point.


I'm grumpy because I can be not because I'm old.

 

The world is what you make of it, if it doesn't fit, you make alterations.

 

Under certain circumstances, profanity provides a relief denied even to prayer.  (Mark Twain)


#4 Gnarltusk

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Posted 31 August 2017 - 03:39 PM

Would not post with everything removed.

 

HP Pavillion p7- 1000

infineon B

Hitachi 1TB hard disk

HP RAM

New PSU

 

 

thats about all i can pull without dissecting it



#5 The-Toolman

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Posted 31 August 2017 - 04:02 PM

Would not post with everything removed.

 

So you tested it as per my instructions in post #3.

 

Leave power supply motherboard connectors plugged in and ram plugged in.

If no on board integrated graphics are available than install graphics card and any power cables needed by the graphics card and connect monitor and see if it will post.

 

The reason I ask is you said and I quote "Would not post with everything removed.".

 

It has to have at least one stick of ram in it and a graphics adapter to at least post.

 

I know this is frustrating.


I'm grumpy because I can be not because I'm old.

 

The world is what you make of it, if it doesn't fit, you make alterations.

 

Under certain circumstances, profanity provides a relief denied even to prayer.  (Mark Twain)


#6 Gnarltusk

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Posted 31 August 2017 - 04:20 PM

Yes, I followed all the instructions. Connected monitor to onboard graphics, left only 1 stick of RAM installed, no HD, no DVD, Just the two power connectors to the motherboard. The green light still comes on but no beeps or blinks. Other than that there are no signs of life when I push the power button. Tried as well with a known working graphics card too, just RAM and graphics card. Still nada.



#7 The-Toolman

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Posted 31 August 2017 - 04:27 PM

Leave as it is in post #6 and remove power cord from computer.

 

Pull bios battery and let set for 10 minutes.

 

Reinstall bios battery and plug in power cord and power up and see what happens.

 

Do any fans run at all.


Edited by The-Toolman, 31 August 2017 - 04:47 PM.

I'm grumpy because I can be not because I'm old.

 

The world is what you make of it, if it doesn't fit, you make alterations.

 

Under certain circumstances, profanity provides a relief denied even to prayer.  (Mark Twain)


#8 The-Toolman

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Posted 31 August 2017 - 04:46 PM

If a no go from post #7 then I'm going to have to say dead motherboard.


Edited by The-Toolman, 31 August 2017 - 04:54 PM.

I'm grumpy because I can be not because I'm old.

 

The world is what you make of it, if it doesn't fit, you make alterations.

 

Under certain circumstances, profanity provides a relief denied even to prayer.  (Mark Twain)


#9 Gnarltusk

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Posted 31 August 2017 - 06:08 PM

Post #7 was a no go. Also reviewed the video and could see nothing at all like the caps in this video. They were all shiny and new looking. No bulges



#10 The-Toolman

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Posted 31 August 2017 - 06:56 PM

I'm going to have to say that the mother board is dead.

 

I'm afraid I'm out of things to try.


I'm grumpy because I can be not because I'm old.

 

The world is what you make of it, if it doesn't fit, you make alterations.

 

Under certain circumstances, profanity provides a relief denied even to prayer.  (Mark Twain)


#11 Gnarltusk

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Posted 31 August 2017 - 07:20 PM

Thats what I was thinking. Just didnt want to admit it. Thanks for your help tho, mate! I appreciate you taking time to try to help.



#12 The-Toolman

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Posted 31 August 2017 - 07:49 PM

You are :welcome: .

 

Check Newegg they seem to be having a lot of good sales on desktop computers.

 

https://www.newegg.com/

 

 

Please buy some good surge protectors or battery back up is what I would recommend.

 

The Toolman :wink:


I'm grumpy because I can be not because I'm old.

 

The world is what you make of it, if it doesn't fit, you make alterations.

 

Under certain circumstances, profanity provides a relief denied even to prayer.  (Mark Twain)





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