Inspiron 660 power connector to a non-dell motherboard

Hi, 

I have replaced a faulty dell motherboard with a Gigabyte GA-H61M-S2PV new one.

The chasis connector for power button is compatible with the original motherboard, but i need to know which pins placed where, so i will be able to connect them to the new motherboard. 

Gigabyte have this in the manual: 

where can i find the same from dell motherboard?

Thanks!