When i push power all the fans go on, but the monitor stays black.
I recently put in a new motherboard (and PSU), trying to fix it not booting at all. Before that everything was working perfectly for 5 years.
The only difference with this new motherboard is instead of there being an 8 pin CPU power connector on the motherboard, there is a 4-pin labeled ATX_12V. I don't have a cable from the PSU that fits it, I tried booting without it and with half of the 8-pin cpu cable, but still no gfx, no beep codes, nothing. The fans just keep spinning and the monitor keeps doing nothing.
Motherboard: Gigabyte 970A-DS3P
GFX: GIGABYTE GTX 770
RAM: 3 x DDR3
PSU: corsair cs750 (new)
starting to lose hope.