When i start my pc up its switches back off ?? Tags: Prebuilt Systems Last response: February 7, 2012 10:55 PM in Systems Share paulp300 February 7, 2012 9:37:33 PM it starts up and switches back off , gose on and on .?? More about : start switches back | E-mail me updates | Report abuse Register or log in to remove omega21xx February 7, 2012 10:25:39 PM Bad PSU more than likely, unless you have another failed component keeping it from posting. | Report abuse pjmelect February 7, 2012 10:51:15 PM More likely it is the power supply, but you should also check that the CPU fan is running and that the heatsink is fixed securely. | Report abuse omega21xx February 7, 2012 10:55:31 PM You may also have a fine PSU and just not enough power from it to power components, give us some specs of the psu and computer. | Report abuse Register or log in to remove Ask the community Publish Tom's Hardware>Forum>Systems>When i start my pc up its switches back off ??> Related ressources: ForumP8Z77-V Deluxe in BIOS limbo ( switches off and doesn't switch back on) ForumPC switches off and starts beeping! Forumplz help..my pc switches off (like a crash) without motive :| Forumpc switches on then switches itself off ForumPc switches itself off and power button flashes amber ForumLaptop randomly switches off ! Help! ForumPC turns off immediately being turned on, then turns back on again ForumHELP: P5P800 suddenly switches OFF by itself :(( ForumPc switches off ForumComputer shuts off after boot, then starts back up and goes fine. ForumPC started on its own - Creepy ForumBIOS set to ALWAYS OFF but PC boots up after power is back ForumMy graphics driver for my MSI 560-ti switches off and crashes win7 ForumAcer laptop switches off after 2 seconds ForumPCI compatibility question ForumShould I sell back my components and started the build over? ForumNew build comp won't start Forum[Solved] Built computer wont start ForumBuilt computer won't start with motherboard installed in case. Forum[Solved] PC won't boot when crossfire graphics card and pci card installed More resources Read discussions in other Systems categories Homebuilt New Build Prebuilt Cases Power Supplies RAM CyberPower !