Newly built PC Won't turn on

[Adviceasker]

So, I built a new PC (which I have done many times before) and the PC won't turn on. I've gone through the Tom's Hardware checklist on the troubleshooting boot (twice) and I"m at a loss.

My first problem a day ago was the PC would start up for just a split second before going back down- I found that the power supply was at fault so I got a new one. Before installing the new one in the system, I "breadboxed" the whole thing to test, and everything worked fine. However, now that I've installed it all in the case, it won't even start up for a split second.

I know the GPU at least is still getting power as the power LED (to show that it's plugged in) comes on when I plug the system in. However, there is no other sign of power.

Here are my specs:

AMD - Ryzen 5 1600 3.2GHz 6-Core Processor
$189.99 Free two-day shipping with Amazon Prime $189.99 Amazon Buy
Motherboard

ASRock - AB350 Gaming-ITX/ac Mini ITX AM4 Motherboard
$94.99 FREE $94.99 Newegg Buy
Memory

G.Skill - Ripjaws V Series 8GB (2 x 4GB) DDR4-3200 Memory
$90.00 (Purchased)
Storage

Kingston - SSDNow V300 Series 240GB 2.5" Solid State Drive
$100.00 (Purchased)

Seagate - Barracuda 2TB 3.5" 7200RPM Internal Hard Drive
$66.88 $66.88 OutletPC Buy
Video Card

Asus - GeForce GTX 1070 8GB STRIX Video Card
$350.00 (Purchased)
Case

Phanteks - ENTHOO EVOLV SHIFT Mini ITX Tower Case
$109.99 FREE $109.99 Newegg Buy
Operating System Windows 10​ Key $0.00 (Purchased)
Case Fan

Noctua - NF-P14s redux-1500 PWM 78.7 CFM 140mm Fan
$14.84 $14.84 OutletPC Buy
Rosewill O​EM 120mm f​an $0.00 (Purchased)
Other

Phanteks PH-LEDKT_COMBO RGB LED Strip Combo Set
$14.23 FREE $14.23 Newegg Marketplace Buy

Thermaltake Toughpower SFX/ATX 450W Continuous Power 12V 3.3/ATX 12V

 

[JoeMomma]

PERFORM THESE STEPS before posting about POST/boot/no video problems!
http://www.tomshardware.co.uk/forum/261145-31-perform-steps-posting-post-boot-video-problems?_ga=2.226691284.892554263.1511023889-573102349.1504020172

 

[Adviceasker]

PERFORM THESE STEPS before posting about POST/boot/no video problems!
http://www.tomshardware.co.uk/forum/261145-31-perform-steps-posting-post-boot-video-problems?_ga=2.226691284.892554263.1511023889-573102349.1504020172

Joe, I stated in my post that I had already gone through that checkllist.

 

[lumineZ]

If everything is plugged in correct then my penny is on your PSU...

 

[Adviceasker]

If everything is plugged in correct then my penny is on your PSU...

That would be my thought as well, but I tested the power supply before assembling in the case. Additionally, I've now tested with with another power supply that I know works and that still had the same effect- nothing.

 

[JoeMomma]

PERFORM THESE STEPS before posting about POST/boot/no video problems!
http://www.tomshardware.co.uk/forum/261145-31-perform-steps-posting-post-boot-video-problems?_ga=2.226691284.892554263.1511023889-573102349.1504020172

Joe, I stated in my post that I had already gone through that checkllist.

Sorry my bad TL;DR posted too quickly and moved on.

 

[lumineZ]

If everything is plugged in correct then my penny is on your PSU...

That would be my thought as well, but I tested the power supply before assembling in the case. Additionally, I've now tested with with another power supply that I know works and that still had the same effect- nothing.

Have you tryed to build it outside of the case and see if it works then? mayne you are creating a short circuit you cant see. Like the backside of the mobo touching the mobo tray.

 

[Adviceasker]

If everything is plugged in correct then my penny is on your PSU...

That would be my thought as well, but I tested the power supply before assembling in the case. Additionally, I've now tested with with another power supply that I know works and that still had the same effect- nothing.

Have you tryed to build it outside of the case and see if it works then? mayne you are creating a short circuit you cant see. Like the backside of the mobo touching the mobo tray.

I did try that before assembling inside the case and it worked...I've just tried it again outside the case and now it does not work...so either my power supply or my mobo is dead, and they both worked this morning...

 

[theworstpersonever]

Or maybe your ram is broken.

 

[Adviceasker]

Or maybe your ram is broken.

But then the computer should still turn on with at least on stick right? I've tried both in multiple different orientations.

 

[theworstpersonever]

Or maybe your ram is broken.

But then the computer should still turn on with at least on stick right? I've tried both in multiple different orientations.

If this possible, change your motherboard to the old one to see if your PC boot. If so, i can say the new mobo is broken.

 

[Adviceasker]

Or maybe your ram is broken.

But then the computer should still turn on with at least on stick right? I've tried both in multiple different orientations.

If this possible, change your motherboard to the old one to see if your PC boot. If so, i can say the new mobo is broken.

It's not. However, I'm leaning towards this being the issue.

 

[Adviceasker]

I'm returning the motherboard. I'll update the thread if the replacement fixes the problem. Thanks to everyone for the suggestions!

 

[Adviceasker]

Alright, so got the new motherboard today, hooked it all up, and it STILL DOESN'T work. Any idea at all would be highly appreciated.

 

[Calvin7]

Power supply does not meet the minimum Recommended System Power as published by NVidia.
https://www.nvidia.com/en-us/geforce/products/10series/geforce-gtx-1070-ti/

 

[Adviceasker]

Power supply does not meet the minimum Recommended System Power as published by NVidia.
https://www.nvidia.com/en-us/geforce/products/10series/geforce-gtx-1070-ti/

It should still be able to run it, and even if it couldn't, it's irrelevant as I still have the same problem when the gpu is not installed.

 

[Adviceasker]

I figured it out! The power button had disconnected from the circuit board for the case. I pulled it apart and reconnected it- working now!