Computer Turns on and Off and on and off Tags: Homebuilt Computer Intel i7 Gigabyte Systems Last response: December 22, 2010 12:15 PM in Systems Share netro008 December 21, 2010 2:21:38 PM Spec: GIGABYTE GA-X58A-UD3R Intel core i7 950 H70 6gb DDR3 ram EVGA GTX 570 I just built a computer and when i turn it on, after 2 sec it turns back off then turns on again then turns off repeatedly. More about : computer turns bdbeall December 21, 2010 2:25:07 PM does it post then restart? or just go off and on? bdbeall December 21, 2010 2:27:08 PM http://www.tomshardware.com/forum/261145-31-perform-ste... Check that. My guess would be that it is either the PSU or your MOBO is bad. Related resources Computer boots up to the startup screen, then turns off - Forum Computer turns on and off and on and off etc. - Forum Computer turns on then off - Forum Computer turns on, nothing appears, then it turns off - Forum [Solved] Computer boots for 1 second then turns off - Forum Can't find your answer ? Ask ! Get the answer netro008 December 21, 2010 2:29:03 PM bdbeall said:does it post then restart? or just go off and on? just go off and on cryzr December 21, 2010 9:43:04 PM Just had a similar problem... I would try and get a hold of a PSU and start there, it is the easiest one to test netro008 December 21, 2010 9:45:39 PM Problem fixed, it was a faulty Motherboard. Got it replaced bdbeall December 22, 2010 12:15:04 PM sweet, happy computing Can't find your answer ? Ask ! Publish Related resources http://www.tomshardware.com/forum/ [...] o-problems Forum Computer turns off while playing games Forum Computer turns off after connecting dvd Forum Desktop computer turns off few seconds after booting Forum MoBo light on, but computer turns off and on endlessly? Forum Computer Turns Off When Video Card Plugged In Forum Computer turns on then off inmediatly, no beeps Forum Computer turns on then off then back on...why? Forum Computer turns off randomly PSU and GPU Problem Forum Computer Turns On Then Off . Forum Computer randomly turns on and off Forum Computer turns on for a few seconds then turns off before BIOS Forum Computer turns off then on, No screen after upgrade to new cpu cooler Forum Computer turns off a few seconds after turning on, then is normal. Forum Building computer and it turns off after a couples seconds Forum More resources Read discussions in other Systems categories Homebuilt New Build Prebuilt Cases Power Supplies RAM CyberPower !