Original problem started when I decided to install modular PSU, and at the same time test if I could install a newer used GPU. Computer starts and fans rotate, but I can not hear any bios beeps. Nothing shows up on display.
I have switched back to the old PSU, but the problem still persists. No beeps, no pictures. Nothing. Except fans rotate and computer "starts up".
NZXT Lexa (case)
MSI P35 Platinum (Motherboard)
4GB RAM ([Performance] F2-6400CL5D-2GBNQ G.Skill DDR2 800Mhz)
Antec Eartwatts 80 plus 500W
Manual for Motherboard: https://www.msi.com/Motherboard/support/P35_Platinum.html#down-manual
Last downloadlink, pages 37 - 38
LIGHTS ON MOTHERBOARD: (Currently testing memory by trying them one at a time, and then testing maybe totally new RAM stick)
Edited by Lostedge, 04 June 2016 - 09:36 AM.