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PC won't start, nothing happens press power button (Resolved)


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#16
iammykyl

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Are there more than two wires coming into that plug?

Pull the plug off and tell us what pins are underneath.


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#17
simon_grylls

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there are three wires connecting to the plug and one is with the 1,3 pin and another one with the 2,4 pin and the last one with the 6,8 pin.
I said the pin numbers according to your attachment pic

Edited by simon_grylls, 21 November 2015 - 08:52 AM.

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#18
iammykyl

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Thanks for the update.

Sorry for the back and forth, I have not seen a board with that type of plug before.

Leave the plug from the case switches disconnected.

Turn off the PSU, reattach all the power leads to the MB you removed for testing.

1.   With a small screwdriver, briefly touch both pins, #6 and #8, at the same time.   the computer should start, wait till the desktop is fully loaded. 

2.   With the screwdriver, touch pins #6 and #8 again again, If the computer shuts down, post back.

If the computer restarts, wait for the desktop again, use the Start Menu to shut down, then post back. 


Edited by iammykyl, 21 November 2015 - 08:04 PM.
Add more instuctions

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#19
simon_grylls

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no my computer didn't start when I did that
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#20
iammykyl

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Not looking good.

To verify everything, please check again.

The wire you used to test the PSU has been removed.

The two main power cables from the PSU to the MB are securely seated.

The CPU fan is plugged into the MB.

The PSU is using the power cable you know is good.

The PSU is switch on at the wall outlet.

 

Please try again shorting out the #6 and #8 pins. 


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#21
simon_grylls

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yes I checked and tried again
but it didn't start :-(
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#22
iammykyl

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Reconnect the front panel plug and try starting using the case button.

If still a fail, looks very much like there is a fault on the MB.

I will ask Phillpower2 if he has any other suggestions.


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#23
simon_grylls

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its too bad if there is a fault on MB
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#24
phillpower2

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Not much that I can suggest as the exact same steps that I would have followed have been done with the exception of the following;

 

With the power cord disconnected from the wall socket, remove the MBs CMOS battery, disconnect the screen, disconnect the PSU power connections from all drives, remove the Ram + any add on cards such as GPU etc, disconnect the case connection to MB header, replace the CMOS battery, connect the main power cord, short out pins 6 and 8 on the MB to test.

 

If still no joy, it could still be a bad PSU not putting out enough power so if at all possible try borrowing an alternative for testing purposes or have the present one tested by a tech store.


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#25
simon_grylls

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okay friends
I'm going to take my CPU to a service center
Thanks for your help and thanks for spending your precious time for me.
Thank you iammykyl
Thank you phillipower2
and Thank you Kemasa

By the way can you tell me
how to close this forum
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#26
iammykyl

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You are very welcome simon_grylls :thumbsup: 

Thanks Phillpower2 for the review and suggestions, :hug: 

 

okay friends
I'm going to take my ***CPU*** to a service center
Thanks for your help and thanks for spending your precious time 
By the way can you tell me
how to close this forum

Did you mean PSU? I don't think there would be a need to get the CPU tested.

We don't close topics as you may need to come back with other questions, or to tell us the problem is solved.

 

:idea: Seeing Phillpowers2's suggestion, "remove the MBs CMOS battery,"   I would replace it with a new one (about $4).   This will reset the MB to the Default or Safe Setting.   It is possible that the the Power Scheme is corrupted/altered,  The pins #6/8 Defalt is, Power on/Power off, it may be set to "Do Nothing.  

then,

1.   test using the case button.

2.   Test, shorting out pins #6 and #8.

3.   Test shorting out pins #5 and #7, Default Restart.


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#27
simon_grylls

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okay I'll give it a try
thanks
if it fails
then the next choice for me is service center.
I'll inform you after I repaired it
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#28
iammykyl

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:thumbsup: 


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#29
simon_grylls

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I got my computer repaired
there was an fault on motherboard

Edited by simon_grylls, 28 November 2015 - 10:26 AM.

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#30
phillpower2

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Glad to hear that you have managed to resolve the issue :) did the tech/s happen to tell you what the fault was.


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