Computer no longer POSTing, no mobo error codes, no beeps, but RAM gets power

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markprzepiora

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Jan 21, 2018
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Motherboard: Gigabyte Z370 Aorus Gaming 5
CPU: 8700K
PSU: Corsair TXM 750

I've narrowed it down pretty reasonably to one of the above components... I've tried each RAM stick individually so fairly sure it's not the RAM.

This is a very new build, put it together a couple of months ago. The video below shows exactly what happens when I power it on.

Any educated guesses on what's busted?

Thanks in advance.

[video="https://www.youtube.com/watch?v=dy7EPXXlPnI"][/video]
 
Solution
luzclasil1


Sounds like a good plan! The PSU is most likely to be the source of your problems so I would swap the PSUs just to make sure it's not anything else. Test if it powers up using...
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luzclasil1

luzclasil1

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Jan 21, 2018
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I would say the PSU is not delivering enough power to it. If it were the RAM or CPU it should turn on briefly or beep at least. Have you checked if all the cables are hooked up properly? If you can't test it with a spare PSU I would at least check everything with a voltmeter.
 
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markprzepiora

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Jan 21, 2018
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Thanks for the reply! I double-checked that the power cables are all tightly connected. (The computer's just been sitting on my desk so no reason they would come undone anyhow.)

I do have a spare PSU (well, in another computer) so I will give that a shot tomorrow after work.
 
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luzclasil1

luzclasil1

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Jan 21, 2018
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Sounds like a good plan! The PSU is most likely to be the source of your problems so I would swap the PSUs just to make sure it's not anything else. Test if it powers up using your spare PSU and also test if this PSU is able to power up the other PC. I would do that just to be 100% sure. If you can't properly power up your old PC, then bingo!
Once you're sure the PSU is the problem contact Corsair and they can supply you a new one out of charge most certainly. Their products should not fail that easily.

 
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Solution
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markprzepiora

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Jan 21, 2018
4
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510


Frankensteining the computers together confirmed it—the PSU is dead! It powered on fine using my other desktop's PSU.

kkgzt6H.jpg


Thank you for your help!
 
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luzclasil1

luzclasil1

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Jan 21, 2018
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No problem, brother! I'm glad I was able to help you out with that.
Now make sure you contact Corsair and try to get a new one for free. TXM 750 is a relatively expensive yet good PSU, it was not supposed to fail within a few months of usage. I'm pretty sure they will be able to hook you up with a new one out of charge :)
Good luck!
 
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markprzepiora

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Jan 21, 2018
4
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510


Yep, I'm getting it RMA'd through my computer store. I bought a new PSU since I didn't want to wait however many weeks it will take, so I'm back up and running. :)
 
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