Recently Swapped out my old enermax PSU for a new one. Plugged everything back in. I inadvertenly disconnected a a twin wire two prong cable which connects to the hinge of the front door of the Tower. It is tied into the other connectors for the system pannel(20 pin) connector on the motherboard. However i do not know where it plugs in? I would not normally care but the PC will not power up with the new PSU. All i am getting is the standby power LED on the motherboard to light up. I have connected the two fans to the same cables as the EZ_plug( which i just use a ordinary four prong connector). The DVD and CD-R drives use the same power cable. The HDD i have using a SATA power connector. Finally the floppy drive just uses a standard connector with nothing else on the other 12v connectors. The motherboard uses a ATX connector, EZ_plug and 24 pin connector. I just realised i connedted the PSU up incorrectly. I used an EZ_plug with the ATX connection which i should not do with a Geforce 7800 GT on Asus A8N-SLI Deluxe(ez-plug should only be used with two cards?). I also forgot to connect the six prong connector on the video card. Would this earlier omission on my part have damaged the mobo? I rectified and still no change?