New buildt computer - black screen ASUS P7P55D Tags: Homebuilt Light LED Monitor Systems Last response: February 25, 2010 10:39 PM in Systems Share shad_73 February 25, 2010 5:44:34 PM Just buildt a new system. Turn on power and black screen. No beeps. All fans are working. DVD can eject. So PSU seems fine. As soon as power is connected the green Boot_device_led on mobo has a constant green light. As soon as I start up the PC, the red CPU_led has a constant red light. I do not know if the constant green light from Boot_device_led indicates anything? (if it is supposed to always be on). I do understand that the constant red light from CPU led is probably not a good sign. Anyone had similar experiences with this Motherboard? regards Components are: - P7P55 D Motherboard - i7-860 CPU - Cooler Master Hyper 212 Plus CPU Cooler - HX850 PSU - 2 x Corsair XMS3 DDR3 1600MHz 4GB CL8 - Gainward GTS 250 Videocard More about : buildt computer black screen asus p7p55d fastx21 a b B Homebuilt system February 25, 2010 10:36:49 PM Any kind of long beeps? I'd say reseat the video card (check power connections) and reset the memory sticks. shortstuff_mt a b B Homebuilt system February 25, 2010 10:39:10 PM The READ before posting about boot problems! sticky at the top of the forum was created to troubleshoot this exact type of problem. You should start off by performing EVERY step in the checklist. My guess is that #2 will get you going. Can't find your answer ? Ask ! Publish Related resources ASUS P7P55D Hard Freezes - Any Ideas? Forum Asus P7P55D + i7 860 + GTS250 freezing a lot ! Forum P7P55D Memroy Problem Forum Asus P7P55D and Corsair Vengeance 2x4GB: freezing Forum New Asus P7P55D build problem Forum READ before posting about boot problems! Forum ASUS 7850 + P7P55D Issue Forum P7P55D EVO - Blank Screen Forum Asus P7P55D Pro will not boot Forum Asus p7p55d e-pro forum Forum Asus P7P55D PRO RAID 0 + Non-RAID Forum Asus P7P55D Pro 8 pin power half covered Forum Asus P7P55D and Palit GTS 250 1GB..not working Forum most stupid thing you have done to your computer Forum Install XP/raid-0/ Asus P7P55D Premium MB Forum Screen goes black every time I install catalyst control center Forum P7P55D Deluxe Boot Problem (no POST) Forum Will this PCI Fit on my Motherboard? Forum Computer Only Beeps When Turning On Forum Building computer, HELP ME PLEASE Forum More resources Read discussions in other Systems categories Homebuilt New Build Prebuilt Cases Power Supplies RAM CyberPower !