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PC Upgrade, Turns on quick then powers down


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#1 Erik615

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Posted 18 October 2017 - 07:27 PM

Good afternoon, I guess I will just start with the PC/Specs.
 
 
Mobo: MS 7869 (a.k.a. TC-605)
PSU: EVGA 550W
CPU: 17
16GB Ram
 
 
The only upgrade here is the PSU and the Case. The stock PSU is 300W so that needed to be upgraded. The case is the "Rosewill Challenger X Gaming ATX". 
 
Problem:
 
The PC turns on super quick (less than a second) and then shuts down instantly. At first I thought it was the "HDD LED. POWER SW/RESET SW" plugins, but I found a diagram (here: https://superuser.com/questions/692797/front-panel-pins-not-identified-on-motherboard-acer-rs740dvf)
 
I did the "Paperclip PSU Test" multiple times (too many to count), and the fan on the PSU did not turn on. I am SURE this is the problem, but is there anything else I could have done wrong here that could be the issue?


I have moved everything back to the old case, and old PSU. I think its my motherboard that is toast? Nothing is working now.
 

Edited by hamluis, 19 October 2017 - 02:33 PM.


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#2 pistol22cal

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Posted 19 October 2017 - 07:02 AM

You need to use a PSU tester, they are cheap get one today

 

However, its your PSU thats toast.

 

If shorting the pins doesn't make the fans spin its toast.

 

In the process you probably fried your motherboard, it happens.


Edited by pistol22cal, 19 October 2017 - 07:03 AM.

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#3 Erik615

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Posted 21 October 2017 - 04:40 PM

Quick Note: 

 

I posted this question for my brother, as he had no PC available to post. But he figured out the problem. He never put his....standers (?) behind the motherboard in the new case, and is lucky he didn't fry it. 

Many lessons learned, just glad it was a cheap process to learn (instead of an all-out PC).



#4 pistol22cal

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Posted 21 October 2017 - 04:52 PM

Stand Offs


Edited by hamluis, 22 October 2017 - 02:43 PM.

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#5 Erik615

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Posted 21 October 2017 - 05:51 PM

Thanks. Just a couple of amateurs trying to learn.


Edited by hamluis, 22 October 2017 - 02:43 PM.


#6 levirichard

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Posted 24 November 2017 - 04:36 AM

There may be many reasons for it to turn off, such as loose cable and electronic short circuit.






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