pc won't boot fans spin briefly

Does the same thing, CPU fan spins for half a second and stops. â¦ Systems. Thread starter bmc; Start date Jan 3, 2014; Sidebar Sidebar. Tried â¦ Notice the CPU fan spins for half a second and stops. Took off back, cleaned fans, redid thermal paste on CPU/heat sink. Fans spin for half a second and then turn off. PC won't boot, fans spin, CPU LED lights up. My problem is the same as many others I have seen listed. Still does the same thing. Hardware. - letting it charge all night (with fans spinning). But as of this morning, turning it back on not only does that, it also sometimes causes it to shut off and reboot to the same problem by itself. Status Not open for further replies. Tried turning the computer on again, by using screw driver to short the power switch pins. The fans were spinning loud but everything else just seems fine. Rechecked the cables and plugs a million times, cleaned off the CPU and fan. B. bmc Honorable. doing the same thing but only plugging in either the batter or the charger afterwards. Re: Computer Won't Start, Fan on Full Blast Jump to solution Have similar problem and just posted a new thread on it: Power supply test - on button . Have tried all fixes listed. Idea was to reset BIOS. My system is home built, the boot drive being a Samsung 850 EVO series m.2 SSD. 16 GB. Previous Next Sort by votes. I built my first PC like a week ago with no problems, updated bios and installed windows. PC wont turn on. Note: When I changed the Clear RTC jumper from Normal to Clear RTC, fans did not spin but Power LED came on. The keyboard would not light up either, only the mouse. Everything worked fine until system required new heatsink/fan, and motherboard had to be removed from case. Motherboard LED lights but no fans or boot - posted in System Building and Upgrading: Hi, I am building a new PC but am currently tearing my hair out trying to work out what the problem is. [Solved/Closed] Report. Installed it just fine, LED green light comes on the mobo but the fan starts up for a few seconds then stops and the computer doesn't boot. And it won't turn on either way. Fans spin loud. Dec 26, 2013 12 0 10,510 0. Here are my specs: ... Computer fan loud and won't turn on - â¦ Troubleshooting. Things I have tried: - unplugging the battery and charger, holding the power button for a minute, then plugging them back in and trying to start it. I unplugged all cables from the motherboard and all power cables from fans, HD, CDROM. Fans spin (heatsink, chassis) and power LED comes on, but no video. Tried turning on the PC again. Power cord is fine, f10 will not start BIOS. No lights come on at all. Forums. I tried to turn it on after and it wont boot. PC won't turn on. PC was working fine all these years, suddenly went to turn it on and loud fan noise, blank screen, pc won't boot. The fans would all spin fine though and continue on until I hard shut off. 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