CM 690 case
Gigabyte EP45-UD3P mobo
Intel 2.4gHz quad-core
4gb ddr2 ram
Sapphire HD4850 video card
dual 640GB HDD
stealth Xstream 500W power supply
I've got everything plugged in, power is getting to the power supply (the blue light on the back is turned on), no lights on the mobo are turned on (don't know if some stay on whether or not the computer is turned on), the 24-pin and 8-pin power cords are plugged in (although i had to get kind of creative with the 8-pin cord...to recept. for it was on the opposite side of the case)...HDD, DVD-R, and external SATA plugs are all in.
What's happening is that I've tried about 3 or 4 different combinations for plugging in the power switch/HDD lights to the mobo and am getting no response when i turn the thing on. my power supply has a 4-pin 12V cord left over...can't find a spot for it to go into.
Question: what's my problem? why won't the thing turn on?