Computer Powers On, Then Instantly Off Tags: Asus Light Computer Motherboards Last response: October 30, 2010 1:57 PM in Motherboards Share vstrelok October 29, 2010 1:41:13 AM Hello, When the computer is powered on, the lights/fans turn on for about half a second, then turn off. What could be the problem? Thank you, More about : computer powers instantly davcon a b Ĉ ASUS a c 117 V Motherboard October 29, 2010 2:36:16 AM Sounds like a faulty psu. I would test it. http://www.youtube.com/watch?v=5FWXgQSokF4 m 0 l suat a b Ĉ ASUS a b V Motherboard October 30, 2010 1:57:47 PM Check if CPU power is connected (4-pin/8-pin 12V ATX power). Check if CPU is mounted properly in its socket on the motherboard. m 0 l Can't find your answer ? Ask ! Publish Related resources PC powers on and instantly off. Forum Weird Instability, machine powers instantly off Forum Solvedcomputer constantly turning off and then instantly back on Forum SolvedComputer shuts off instantly? Forum SolvedComputer rig turns on then off instantly Forum SolvedNew Power supply and Graphics card PC turns on then off instantly. Forum SolvedComputer Shutting Off Instantly and Restarting — Help! Forum PC instantly turns off after pressing power. Forum SolvedSystem Shuts off instantly, Blue Screen on Power on; After shut off Forum Computer turns off INSTANTLY Forum computer shuts off instantly when started up Forum Computer instantly shuts off Forum SolvedPC POWERING OFF INSTANTLY-Help Forum New Gaming Computer Shuts Off Instantly? Forum Computer Instant Power Off Forum Computer turns on and then off instantly. Forum New computer starts and instantly cuts off Forum SolvedComputer Instantly Shut Down (Power Supply Problem?) Forum SolvedComputer powers on then off 5 seconds later, and then powers back up with no post. Forum SolvedComputer randomly powers off and won't start up untill motherboard completly loses power Forum More resources Read discussions in other Motherboards categories BIOS Boot Chipsets ASRock Asus Chaintech DFI Elitegroup FIC Foxconn Gigabyte Intel MSI-Microstar !