Pc won't work if insert ram

LeoPlex

Reputable
Apr 4, 2015
5
0
4,510
I am just building a new pc and i got everything installed. Asrock z97 extreme 6,i7 4790k and G.Skill trident x series ddr3(8x2). Without the ram the small screen at the bottom of the motherboard stays the same, but when i install the ram (1 stick or 2 in any slot) its says 4f , b2,a2 and then d7and then it stops showing anything, but the fans keep working. I checked the cpu pins and none of them are bent. What should i do
Thank you

When i start the computer up the screen is black so i can't access BIOS