New mobo. fans spin but nobody's home.... Tags: Motherboards Last response: February 2, 2011 10:59 PM in Motherboards Share smoothcannibal February 2, 2011 10:06:59 PM this is the first time i have ever just replaced the motherboard. i have built three systems from scratch. long story short is i can't get it to post. all the fans spin but thats it. specs: biostar g31m+ motherboard Intel Pentium D 820 Smithfield 2.8GHz LGA 775 95W Dual-Core Processor stock heatsink G.SKILL 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 533 (PC2 4200) Dual Channel Kit System Memory onboard graphics ATRIX PSCI-500BLK 500W ATX12V Power Supply 1 120mm coolermaster fan, two 80mm coolmaster fans skythe 5.25 inch bay fan controller with lcd. hp dvd writer ide seagate barracuda hard drive COOLER MASTER Centurion 541 RC-541-SKN1 Black Aluminum bezel, SECC chassis MicroATX Mini Tower Computer Case i've tried my best to troubleshoot this. taking out parts in any combo i can think of. the only time it beeps at me is when the cpu is installed and there is no ram. i though i had a bad board and i exchanged it for the same board. no change. i have tried two psu, two brands of ram, a different case. the only thing i haven't tried is a different cpu. i know it works. i'm using it right now. i have all the parts listed minus the mobo working and running windows stable. which is why i am able to post this. More about : mobo fans spin home tecmo34 a c 235 V Motherboard February 2, 2011 10:21:52 PM It probably is because your CPU is not supported by the motherboard... http://www.biostar.com.tw/app/en/mb/cpu_support.php?S_I... If the CPU isn't supported, there is a high likely-hood the PC will not run unfortunately. m 0 l smoothcannibal February 2, 2011 10:59:10 PM ah man!!!! i didn't even see that. i told the guy which processor i had and that is the board he sold me. i sent a inquiry to biostar about the latest bios they have on the site and if that may support it or not. m 0 l Can't find your answer ? Ask ! Publish Related resources Solved[SOLVED] New mobo and cpu. Old power supply won't post but fans spin. Forum Home Built Desktop, no Video, all lights come on on the MoBo, Fans Spin Forum Fans spin up, no beep on new mobo. Dead CPU? Forum New cpu, MoBo, psu. Fans spin for a couple of seconds but no power up. Forum New Case Fans Don't Spin off Mobo but old fans do? Forum New Case Fans Don't Spin off Molex, but DO Off Mobo? Forum SolvedHELP! Home-built system will not POST, fans spin once and stop Forum SolvedMOBO gets power. front panel does not.Fans don't spin Forum SolvedMOBO gets power. front panel does not.Fans don't spin Forum SolvedNew build, press start fans spin not even 1/5 of a round. Forum SolvedNew Build Fans spin, no display (More details in post) Forum Solved(Urgent) Fans spin for one minute, no post, no beeps - New system Forum Broken mobo/psu/gfx card? Computer posts, fans spin, no monitor output Forum Solvednew PSU installed. computer fans spin for 5 seconds Forum SolvedNew build turns on and fans spin but no post noise or video signal Forum SolvedGPU Fans Won't Spin in New System Forum Solved(new build) monitor won't display BIOS and fans won't spin or CPU cooler. Forum SolvedNew build fans spin then stop S: Forum NO BOOT. No beeps but fans spin and mobo lights... exhausted possibilities? Forum SolvedSo my New build' fans spin for a second then stops then turns off? Forum More resources Read discussions in other Motherboards categories BIOS Boot Chipsets ASRock Asus Chaintech DFI Elitegroup FIC Foxconn Gigabyte Intel MSI-Microstar !