Thanks for the quick replies.
24/8 pin plugs are plugged in . If I turn on the power, i get no fans spinning, no red LEDs either.
I'm using 4x 4 GB Corsair ram (CMX9GX3M2A1333C9) which is on the supported list. The cpu is a Phenom II X4 955 (HDZ955FBGIBOX), which is also supported. The PSU is an Enermax Liberty ELT500AW, the graphics card is a Sapphire 7750 Ultimate.
I already tried using only 1 ram in slot A2, as per Asus' suggestion, no luck.
I havn't used the Q-connector kit yet, I might try that next. Will report back later how that went