Inspiron 620 (MIH61R Motherboard) front panel power button

I have an Inspiron 620 that hasn't been used for long. At first, the connectors were plugged in correct, until I unplugged everything to clean the case. I have searched all over for the layout, and I've tried multiple ways of plugging it in. I eventually got it fixed on my own, but then I bought a power supply, and again, stupidly unplugged it. Now i'm back to square one, and would rather have someone tell me the right way for the next time this happens. I've managed to get some LEDs to work, but in the midst of it I even lost that.