question about psu connectors to motherboard

[schwarg]

Well I've gone through two of these Asus M2N motherboards and the technician that checked out my rig said that everything was fine except the mobo. Now its round 3 and if this doesn't work I'm going to be going with another company. So I just want to be sure that I'm connecting every thing properly as far as the power supply goes, who knows maybe i'm at fault here.

theres a cord that splits off into two separate 4pin connectors labeled 'cpu-1' and 'cpu-2'. as these are the only connectors on the power supply that fit the atx-12v socket, thats where i've been putting one of the two connectors.

the other thing i've been wondering about is the 24 pin motherboard connector. instead of one big 24 pin connector its divided into two separate ones, a 20 pin and a 4 pin, i've been putting both the 20 and 4 into the whole thing cause it seemed like it made sense.

did i mess anything up here? I have images of the stuff if you need to see whats going on here

[schwarg]

heres the 'cpu1 cpu2' things


heres the 20 and 4 pin connector