Question OEM Lenovo motherboard no signal, no post after many blue screens

[supervir]

Hello.
I have a problem with my Lenovo CIH61MI v1.1 motherboard running i5 2400 in a custom built PC. Worked fine for 3 moths with no problems. Then problem started to occur, after few blue screens in two days randomly happening, even when trying to install fresh Windows 10 with USB! Then when I restarted PC no signal with GPU or without. Tried removing CMOS battery, CMOS clear (doesn't seem to do anything all settings are the same only date has been reverted back to 2012), change and checked RAM, tired different PSU, unplugged all removable devices and HDD, power cycled x100, tried different cables HDMI and VGA. Does beep 4 times without RAM. Fans are spinning, reset button some times works (randomly). Some how I have booted into BIOS twice when unplugged CPU fan, I can restart to BIOS after that, but if I shutdown then again no signal, same problem.

If anyone knows something or solution then please be free to help.
Thanks

 

[Lutfij]

Suspecting that there is something amiss with your build. Mind sharing the specs to your build like so:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:

Did you recreate your bootable USB installer using Windows Media Creation Tools?

 

[supervir]

Thanks for getting to me quickly.
My PC specs are
CPU I5 2400
Motherboard OEM CIH61MI v1.1
RAM 2x4GB DDR3
HDD WD blue WD10EZEX
GPU RX 470 testing without
Case aftermarket ATX standart
OS Windows 10 official creator tool HDD is probably dead so I need reinstall after NO SIGNAL TO MONITOR fix.
Thanks