Newly built pc wont turn on

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covannathan

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Nov 7, 2018
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I just built a PC and it wont turn on
the motherboard lights come on but nothing will spin up or even start
ive checked all the wires and cords several times and everything is right but it wont turn on
 
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covannathan

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Nov 7, 2018
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Motherboard: asus prime z270-a
PSU: Evga 850 G2
CPU: i7 8700
GPU: Gigabyte geforce gtx 150 ti
RAM: Patriot Viper Elite 16gb
 
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covannathan

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Nov 7, 2018
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4,510


Motherboard: asus prime z270-a
PSU: Evga 850 G2
CPU: i7 8700
GPU: Gigabyte geforce gtx 150 ti
RAM: Patriot Viper Elite 16gb

My friend that was helping me told me everything was
 
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ChumP

ChumP

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Sep 16, 2014
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That's a great quality PSU(overkill for that system but better to be safe than sorry). Considering that, you should test the system with a known working decent quality power supply unit.

If you're absolutely positive that everything is plugged in correctly, then the PSU would be the first candidate since your fans won't even start spinning.
 
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covannathan

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Nov 7, 2018
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Yep I tried the paper clip test on it and tried a different one and the same result
 
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ChumP

ChumP

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Sep 16, 2014
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Also have you tried running with a minimal set of components(1 stick of RAM, Integrated GPU, no storage devices)?

The next thing to troubleshoot would be the motherboard, because that takes care of the power delivery to your components. I guess you don't have a spare one to test, so it would be wise to RMA your current one.

 
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covannathan

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Nov 7, 2018
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Yep I tried that and still nothing
Well the motherboard I got from a friend who bought it on amazon he never used it and left it on a shelf where he didn’t touch it for 4 months

I’ve been thinking that maybe something isn’t compatible
 
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ChumP

ChumP

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Sep 16, 2014
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Oh, I didn't even notice that.... your motherboard is not compatible with the I7 8700. This CPU will only work with 300 series chipset motherboards(H310,B360,Z370,Z390). That Z270 board is not compatible with 8th gen CPUs.

Here's the CPU support list for the ASUS Prime Z270-A

So you should definitely change the motherboard for a B360 chipset one since your CPU is not overclockable.

Even though the CPU is not compatible, fans should still ramp up but the PC shouldn't POST.

So yeah the motherboard maybe faulty + it's not compatible with the I7 8700.
 
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covannathan

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Nov 7, 2018
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Welp thank you!!
Where can I find a B360?
Also do you know if my ram is compatible?
 
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covannathan

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Nov 7, 2018
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