New PC Build Won't Post. No fans. Looking for guidance!

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Cote870

Commendable
Jan 15, 2017
4
0
1,510
Hi everyone! I'm new to the PC building scene and just finished putting together my first rig. The problem is that when I went to boot it up for the first time no fans were spinning and there were no signs of activity besides the Motherboard power LED coming on. Here are my specs to get an idea of what I'm working with:

CPU: Intel i7-6700k
Case: Phanteks Enthoo Evolv ATX Glass
Motherboard: Asus Z170-Pro
Graphics Card: Asus GTX 1070
CPU Cooler: Deepcool Captain 240 EX

I have attempted the suggested solutions in the troubleshooting sticky. Unfortunately nothing happens when I press the case power button. My Asus motherboard shows no other component LED lights (CPU, RAM, ETC.) except the power light. I have reseated my ram, tried one stick in each of the slots, the psu is on, and my cpu/power connectors from the psu are connected. It seems like something may be incorrectly connected to the case but I followed the user manuals and don't know where to go. Thank you all!

Here are some photos for reference:

http://s1113.photobucket.com/user/JoeDimagio/media/20170115_123027.jpg.html?sort=3&o=3

http://s1113.photobucket.com/user/JoeDimagio/media/20170115_123039.jpg.html?sort=3&o=2

http://s1113.photobucket.com/user/JoeDimagio/media/20170115_123051.jpg.html?sort=3&o=1

http://s1113.photobucket.com/user/JoeDimagio/media/20170115_123115.jpg.html?sort=3&o=0

 
Solution
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Wow sounds like a short caused the PSU's short circuit protection to kick in. If you can, can you test another video card in that system. Or test a different power supply.

I've see low quality power supplies that just couldn't boot certain cheap motherboards. In the end it was the cheap ass motherboards, and the cheap power supplies would boot other systems, but a good power supply was required for these motherboards. So either way you look at it a combination of poor quality PSU and motherboard was the culprit.

The quick check would be to test another power supply. It could be that as soon as the power supply gets the load of the video card it stops working.

Those NZXT power supplies are based on Seasonic boards so you...
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gondo

Distinguished
Apr 20, 2004
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Make sure the correct PSU cables, as already stated, are connected for power. The ATX connectors not the PCI-E connectors. Try shorting the power on pins instead of using the case button. Sometimes the case button is faulty. Use a paper cli or needle noce pliers to short the pins together to start it up. If your motherboard has a power button on it then all the better.

At this point if you still get nothing here is what I suspect. Usually it's a bad motherboard. It's rare to have an Asus be DOA but it does happen. More common is a power supply failure, but more rare is a DOA power supply. It's usually a DOA motherboard, and the PSU fails over time.

Don't use the video card. Use onboard video to test it out. Also don't plug anything in like the hard drive or cd-rom. All you want is RAM and CPU. Reseat the CPU and RAM as those can cause the same problems. If all this fails then your in for some swapping. You;ll need to test the motherboard, PSU, CPU, and RAM. I suspect the parts in that order.

It's tough to test without parts to swap. You can always bring the system to a shop to troubleshoot since they have spare parts to test out. Some people have succesfully RMA'd motherboards that they thought were DOA but actually weren't.
 
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C

Cote870

Commendable
Jan 15, 2017
4
0
1,510
Okay so I tested the base components (CPU, CPU fan, ram, case fans) out of the case and confirmed those work. I then reinstalled everything into the case and tested each piece as I put it back in. Everything works perfectly until I plug the PCI e cord from the PSU to the GPU. Once I plug that it I can't turn my PC on anymore, either from the case power button or jumping the power switch with a screwdriver. Any idea what could be causing that?
 
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gondo

Distinguished
Apr 20, 2004
1,754
25
20,490
Wow sounds like a short caused the PSU's short circuit protection to kick in. If you can, can you test another video card in that system. Or test a different power supply.

I've see low quality power supplies that just couldn't boot certain cheap motherboards. In the end it was the cheap ass motherboards, and the cheap power supplies would boot other systems, but a good power supply was required for these motherboards. So either way you look at it a combination of poor quality PSU and motherboard was the culprit.

The quick check would be to test another power supply. It could be that as soon as the power supply gets the load of the video card it stops working.

Those NZXT power supplies are based on Seasonic boards so you would assume they are top quality, but they are questionable. If a new power supply still has the same problem, then start suspecting video card. But my vote goes for power supply, but I'm not betting any money on it.
 
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