Problem with Z97 Anniversary + i5-4690 (boot loop)

Hi, I'm building a new pc with Z97 Anniversary + i5-4690, but at power the fans run for a few seconds and restart boot on a infinite loop, some time after the first beep, some time first.

At this point I disassembled the pc and tried the following test only with motherboard + ram + psu + cpu :

Z97 Anniversary + {i5-4690,i5-4670k (I have no other cpu 1150)} + { only one stick of ddr3 working well in other pc } + { Psu corsair CX750, other working psu 800w (other pc)}.

No change, after 2-3 second system reboot and this does not occur when:
with no ram installed mb work normal, three beeps repeated being turned on, no reboot
with only one module ram in the fourth slot, system no boot (no beep) but it stay powered.

This problem looks like http://www.tomshardware.co.uk/answers/id-2295705/built-desktop-boot-asrock-z97-4790k.html and mb bios is labeled 1.10 but the specifications on site is clear:
(Cpu and bios compatibility for my mb)

1150

Core i5

i5-4690 (C0)

Haswell-R

3.5GHz

6MB

84W

All

any suggestions?

P.s.
Of course I would have tried to update bios... if I could access it.

Edited by ildrugo - 24 Jul 2015 at 1:45am