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Pc won't POST


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#1 badmaster

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Posted 30 August 2016 - 04:50 PM

Hello,

 

So as the title says, sometimes my desktop won't POST. I turn the power on, the fans and lights work but then the screen stays black and no beeps at all.

 

This happened 2 years ago but it solved by himself, now it came back more annoying than ever...but when the pc finally starts, it works perfectly!

 

What i tried so far:

 

1- Unplug the power cord. press the power button to get rid of the static and wait for 30 seconds ( already waited for a lot more then that).

2- Tried to isolate the problem to a specific hardware piece by taking off the ram sticks and then the GPU.

3- Checked all the power connections to the motherboard.

4- Something more that i'm not recording now...

 

What did i find:

 

1- Took the GPU and Ram sticks off didn't help at all but if i remove power cable from the GPU it emits a continuous beep.

2- Sometimes i try to boot with only 1 Ram stick and it works, then i shutdown and put the second stick and it boots. But this is ONLY sometimes...

 

My desktop is 6 years old and his specs are:

 

AMD Phenom™ II X4 955 Processor

AMD Radeon HD 5800 Series

2x2GB DDR3 Corsair

Asus m4a79t deluxe

 

Note: I don't have extra hardware pieces to try and isolate the possible causer.

 

If you need any additional information, feel free to ask!

 

Thanks in advance for all your help.

 

Best regards,

Hugo Soares.


Edited by Queen-Evie, 30 August 2016 - 05:30 PM.
moved from Windows 7 to Internal Hardware


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#2 dicke

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Posted 31 August 2016 - 02:22 PM

Hugo,

I suspect the power supply.


Stay well and surf safe [stay protected]

Dick E


#3 badmaster

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Posted 01 September 2016 - 05:59 AM

Update:

 

I made some tests which included:

 

1- Memtest of more than 7h without errors.

2- GPU Furmark test without errors too.

3- CPU prime95 4h test without any errors.

 

So maybe is the power supply, is there any way to test it?

 

PS: Last couple of days the problem didn't happen.... 

 

Best Regards,

Hugo.



#4 badmaster

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Posted 07 September 2016 - 12:30 PM

The desktop is fine for now, no more of those problems but still don't know the cause...

 

No one able to help me? :(

 

 

Regards,

Hugo.



#5 dicke

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Posted 07 September 2016 - 12:46 PM

badmaster,

once-in-a-while, sometimes, occasionally errors are very difficult to pinpoint, in almost every case.

The only way to 'test' a power supply is under load. I'm sure there are ways to do this but i am not familiar with any

sorry

 

Dick


Stay well and surf safe [stay protected]

Dick E


#6 badmaster

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Posted 07 September 2016 - 06:38 PM

Hello,

 

Thank you for you answer Dick, i will wait for some more answers to see if they can help me more.

 

Meanwhile, i will search for some forms to test the power supply!

 

Regards,

Hugo






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