Pc Freezes and screen goes black after restart

Hi... my PC hangs up and i restarted and i get a black after the monitors displags thr brand logo... dvi and No signal




Tried solution:
Clear CMOS
removed CMOS batterry
Reseated all hardware including video card,ram sticks and hard drive along with SATA
done a bunch of resets
Clean VideoCard,Heatsinker and Ram sticks
trjed exchanging ram stick placjng



Any help pls? im sorry if i posted in the wrong section

Is this a recently built system ???

If so reseat the CPU and make sure the thermal paste is properly spread and the fans are properly installed