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? m 0 l 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. m 0 l Related resources Computer randomly turns off when gaming - Forum Computer turns on for 1 second, then back off. Tried everything. - Forum New computer suddenly turns off, won't start back up. - Forum Computer powers on for a split second then turns off - Forum Computer starts, turns off in a split second - 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 m 0 l 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 m 0 l netro008 December 21, 2010 9:45:39 PM Problem fixed, it was a faulty Motherboard. Got it replaced m 0 l bdbeall December 22, 2010 12:15:04 PM sweet, happy computing m 0 l Can't find your answer ? Ask ! Publish Related resources SolvedAmd fx6300 overclocked to 4.3GHz, computer turns off in prime95. Forum SolvedComputer turns off after 15 minutes following repair Forum SolvedReset Button Turns Computer on and off Forum SolvedComputer turns on them turns back off. Pleas help Forum SolvedHelp! When i press the power button the computer only starts for a split second then turns off. Forum SolvedComputer turns off when gaming HELP!? Forum SolvedBlack screen on boot-up and computer automatically turns off after 40 seconds. Forum SolvedComputer Randomly turns off New CPU New Motherboard New PSU liquid cooling only when playing games Forum SolvedComputer turns on for half a second then turns off with new PSU Forum SolvedComputer turns off monitor Forum SolvedComputer turns off-on when booting, peripherals do not work Forum SolvedComputer Turns On For A Split-Second and Then Turns Off Forum Solvedcomputer infrequently turns off while in sleep mode Forum Solvedcomputer turns on screen doesnt come off the standby mode Forum SolvedComputer turns on and accesses BIOS and shuts off after 10 seconds, 2 beeps when turning on Forum More resources Read discussions in other Systems categories Homebuilt New Build Prebuilt Cases Power Supplies RAM CyberPower !