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 New installed ASUS Geforce 780 causing my computer to stay at black screen with B2? Forum Just buildt a new computer. It powers up but i dont get no beep code. Cant turn of with power button. NEED HELP. Forum SolvedAsus Gtx 660 stops working in game, black screen when start computer Forum SolvedNew Asus P8Z77-V PRO Motherboard will cause black screen when I log in, after I update drivers from disk. Forum SolvedSerious Problem - Black screen on new computer Forum SolvedComputer crashes to black screen after installing new graphics card: any help/advice? Forum SolvedNew AMD Phenom II X4 965 into Asus M4A785-M (Black screen on start up) Forum Solvedfriends new computer is getting a black screen Forum Solvedmy new computer wont boot up just black screen Forum My brand new Asus (2 of them) N750JK - No Post (Black Screen) adventures Forum (Asus gtx 750 ti oc) New graphics card, screen goes black with underscore after booting Forum Computer doesn't boot after installing new RAM. Black screen. Forum Asus: Computer starts up to a black screen with white cursor Forum Black screen after using computer for 5 minutes; new heatsink. Forum Just changed my ram from 4gb to 8 gb corsair vengeance pro 1866mhs but now computer won't start it stays on the ASus p7p55d le Forum New Computer Built - Display Randomly Turns Off/Black Screen [No Signal] + Some Audio Distort and Reboot Forum Newly installed asus geforce gtx 780 into my msi 970a-g46 computer gets stuck at black screen and a b2 in bottom right corner. Forum New Computer Shut down/ Black screen problems Forum Just Installed some new memory into my Asus 990 FX and get black screen when trying to enter BIOS Forum SolvedChanged bios settings on Asus laptop and now all I get is a black screen Forum More resources Read discussions in other Systems categories Homebuilt New Build Prebuilt Cases Power Supplies RAM CyberPower !