Help? POST Problems...

[ScratchJak]

So first, all the components of the current build:

Intel i7-7700 (cooled by Noctua NH-L9i)
Asus Strix Z270i Gaming Mini ITX
G.Skill Trident RGB DDR4 3200 8GB (x2)
Zotac GeForce GTX 1080 Mini
Samsung M.2-2280 SSD 120GB

The motherboard is plugged into a Corsair 1200 HXi (from my full tower, this build is for a buddy of mine) with a 24-pin and 8-pin connector, as well as another 8-pin to the GPU. However, after trying to start the mobo and getting it to POST, all that happens is a small click within the PSU (as if it turns on then off fairly quickly). I know the GPU works just fine as I've tested it in my tower, but I have no way of testing the other components (I think).

I've already gotten a replacement for the mobo, thinking it was a bad board, but a second time tells me otherwise. Any ideas? I'm not getting any lights telling me CPU, GPU, RAM or VGA errors....so I ave a feeling its a power draw issue....

Also, this will all fit into the NFC Systems s4 mini eventually, as well have the HDPlex 400 PSU+Dell 330W. (if that helps for future issues -_- ).

 

[jeshikat]

Best procedure in these situations is to run through all the parts one by one as best you can.

• Try resetting the BIOS
• Try each stick of RAM individually, in each slot
• Try booting the board without the GPU installed
• Try without SSD installed
• etc

Also reseat all connectors if you haven't already, maybe even remove and reinstall the CPU.

 

[ScratchJak]

Darn. Tried all of those, and also called ASUS. Nothing worked -_-

Could the power supply be the issue? I know it works with my tower, but for some reason it doesn't like this board...

 

[jeshikat]

I suppose that's possible, though that'd be very odd.

Is this setup currently installed in a case?

 

[Broxin]

Ive read somewhere that on powerproblems you had to change the pcie to gen2 in the bios. Dont know why but one guy replied that it helped.

 

[ScratchJak]

Finally got my HDPLEX400 and tried booting with it and it worked fine. Seemed that the problem was with my corsair psu. Works fine now

 

[rchetal]

Wow that sounds super similar to an issue I had a week ago (posted here https://smallformfactor.net/forum/threads/cant-get-to-post-immediately-shuts-down.2774/)

I have a very similar setup:
S4 Mini Chassis
Asus Strix Z270i Mini-ITX
MSI Aero 1070 ITX
Intel i5-7600K + Noctua L9i
GSkill TridentZ 3200MHz
Samsung 960 PRO 512gb
FireCuda 2tb + 8gb SSHD
G-Unique 400W Power supply + 400W brick

Every time I pressed the button it would seem to "pop" and reset the board. I assumed the psu was dead but I sent it back and gury tested it for me with the same motherboard and it seemed to be perfectly fine. I have been using an EVGA 400W psu temporarily but I never did figure out what was wrong with it.

 

[Broxin]

The asus z270i is a very strange board. I have it also and it behaves unpredictable all the time