Hi all, having some serious stress issues trying to figure this out! Ok, so specs first I guess: i7-920 Asrock x58 extreme mobo HIS 5870 Radeon Corsair 750w psu G.Skill 3x2 gb DDR3 ram 1600 1.5v-1.6v Ok, now I've tried just about everything I can think of, and lastly it's looking like RMA, but I really hope it's just some minor oversight causing all this mess. I've plugged in 12v & 24pin connector to mobo I've cleared the CMOS I've tried 2 different video cards, both DVI slots on em, I tried HDMI on the card that allowed it. W/ 2 different monitors as well. I have the mobo mounting pins in I can't see any place the mobo could have a grounding problem (i.e.: touching the case). Any ideas? I've been racking my brain with this for hours. Everything turns on, fans run, front panel works, HD light comes on, everything but the monitor. I can't check for beeps, no internal speaker. I've mounted the RAM in a few different ways, using all 3 sticks alone. I just took off the battery, letting it sit out for now. Please help!