No display outputting from PC!

[dzek_trbosek]

Hi there.

I'm turning on my PC and all the fans spin normally and powers up, however, there is no ouput to the monitor at all. The screen just stays black.

 

Things I've tried:

• Cleaning everything
• Checked all wires and that GPU sits correctly.
• Trying another GPU (the same outcome)
• Switched the position of the CMOS jumper and then put it back.
• Installing a new motherboard
• Installing new PSU
• Changing the one 8GB stick of RAM into another slot.
• Monitor and HDMI with laptop (worked fine)
• Plugging HDMI into Mobo. (But my CPU doesn't have integrated graphics)

 

Before all of this happened, I was having a problem where my PC would crash and I'd have the "Bad System Config" error, as shown in the photo below. Windows was not booting properly at all. I was about to complete reinstall Windows, but then it wouldn't power on. Now it does power on after installing new PSU and new Mobo, however, no output.

 

Does anybody have any idea of what could be wrong and anything I could do? I am desperate and about to give up. Haha.

Thank you very much.

 

[dzek_trbosek]

My specs by the way are:

Motherboard Biostar Hi-Fi A70U3P

RAM: 8gb Hyper Fury X DDR3

CPU: AMD Athlon X4 880K 4.2GHz 

Storage: Seagate 1TB 3.5" SATA Desktop Hard Drive 

GPU: MSI GTX 970 4gb

PSU: EVGA 500 W1, 80+ WHITE 500W

OS: Win 10 64bit