Question ASUS Maximus VII ranger doesn't boot

[slo-tech]

Hello guys!

I am experiencing problems, which are connected with my ASUS Maximus VII ranger motherboard. Image doesn't display on the screen, q-codes 58, 59 and (mostly) 55 are being displayed on the mbs' screen.

LEDs are also flashing when i turn on my computer. Firstly, CPU LED flashes for 2s, then DRAM LED turns on and after some amount of time they both turn off.

I've already tried running my PC with only 1 RAM stick in it, checked for bent pins and even fix one, but motherboard still doesn't work.

Can someone help me? Thanks!

 

[Lutfij]

List specs to your build like so:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:

Inspect the CPU socket for any bent/broken pins.

 

[slo-tech]

CPU: i7 4770
Motherboard: ASUS Maximus VII
Ram: Crucial ddr3 8GB 1600mhz and Corsair Vengeance ddr3 4GB 1600mhz
SSD/HDD: Intenso 128GB ssd, 1TB wd blue
GPU: Gainward GeForce Gtx970
PSU: XFX TS550
Chassis: shitty chassis from 2005
OS: windows 10

There aren't any bent/broken pins.