Cant get my PC to boot anymore, only black screen, but fans are running

[b0ndemand]

Hello, i really need your help!

A month ago or so, i encountered that my pc would not start. The LED's would light and the fans would run but no signal would come to the monitor. I took the power off and then tried again and then it worked.

But lately the problem became worse. It would happen more often. And now today it just won't work at all.

I have tried to:

* Remove both ram sticks and try one at a time in each slot.
* Remove my SSD and GFX (then using my onboard)
* Removed all connections except power to motherboard and DVI to monitor
* Reset CMOS on the motherboard

Since the problem started i formatet my pc and installed Windows 10 (from 7) and i upgraded from a GTX 770 to a 1070. This happened at the same time. But the problem did occur just as i formatet, but a few days after.
'
I suspect it is either the PSU or the motherboard, but i am not sure, and i sadly cannot just try another PSU.

Have any of you tried something similar, or do you have any tips? I really miss my PC...

SPECS:

* ASUS Z97I-PLUS
* Intel Core i5-4690K Devils Canyon
* Kingston HyperX Fury DDR3-1866 DC - 16GB (2x8)
* Inno3D GeForce GTX 1070 Twin X2
* Corsair CS650M Gold
* Fractal Design Node 304 Mini-ITX - Black
* Samsung 840 EVO SSD - 250GB

 

[Chris_343]

I'm having the same problem.

Tried all you have as well.

Specs :
AMD FX-4100 stock heatsink
GTX 740SSC 4GB
8GB Crucial 1333mhz ram, 2x4
ASRock 960GM-GS3 FX, ATX
465W PSU
1TB Toshiba HDD

 

[b0ndemand]

I'm having the same problem.

Tried all you have as well.

Specs :
AMD FX-4100 stock heatsink
GTX 740SSC 4GB
8GB Crucial 1333mhz ram, 2x4
ASRock 960GM-GS3 FX, ATX
465W PSU
1TB Toshiba HDD

Hello Chris, the solution for me ended with i sent my motherboard back to asus for the warranty (it had 3 years). They refunded my money and i bought a new motherboard. After replacing the motherboard my system worked again. So for me it was the motherboard and the only option was to get a new one.