OK I am new to building computers, so bear with me if I am asking lots of beginner questions. First, here's my build: ASUS P5E3 Deluxe WiFi Intel Core 2 Extreme QX9650 4GB Corsair TWIN3X4096-1600C7DHXIN eVGA nVIDIA GeForce 9800 GX2 Antec P182 Tower Western Digital WD6400AAKS 640GB Corsair CMPSU-620HX 620W SLI Certified Modular ATX Power Supply LG GGW-H20L BD/HD Combo Drive Lite-On DVD-RW Hauppauge WinTV-HVR-1800 Creative Sound Blaster X-Fi XtremeGamer Sound Card Atech PRO-28U 28-in-1 Internal Card Reader I just finished checking, rechecking, and re-rechecking all my connections and everything is 100% correct. But for some reason my mobo isn't going into the POST test, and my monitor sits in standby mode. I've tried moving RAM to different DIMMs and that didn't do anything. I've checked the power and connectivity of the GX2 and that's fine. Everything else in the case is getting power and working (fans, drives, power/reset buttons, etc.) What the heck should I do before shipping all this stuff back? This is frustrating!