Sudden shut down during initial bios setup Tags: Homebuilt BIOS Shutdown Systems Last response: March 24, 2012 12:35 AM in Systems Share Majesticsombrero March 24, 2012 12:22:43 AM Hello, I have recently finished building my first computer. whenever i turn it on it shuts down within 30s-3 minutes. i have not been able to get past the main bios screen. Here are my specs: Gigabyte z68ap-d3 motherboard intel core i5 2500k CPU 120 gb ssd 2x4 gb corsair ddr3 RAM Ultra 550w psu I have tried going through the bios setup about 15 times and it keeps turning itself off. Any ideas on what i screwed up on? More about : sudden shut initial bios setup | E-mail me updates | Report abuse Register or log in to remove Proximon Homebuilt system Master March 24, 2012 12:35:46 AM We have a great tool for that if you will use it properly: http://www.tomshardware.com/forum/261145-31-perform-ste... But if you would like an educated guess I have a few. -Improper heatsink installation -Failing PSU Ultra made a few good PSUs at one point, but most of them are very poor or complete junk. They don't even bother to send them to real reviewers any more. | Report abuse Ask the community Publish Tom's Hardware>Forum>Systems>Sudden shut down during initial bios setup> Related ressources: ForumComputer shut down ; freezes at BIOS screen ForumComputer hangs at motherboard splash screen during initial boot up ForumComputer shutting down when idle regardless of config ForumNewly built PC shuts down during games ForumWhy does PC auto-restart after Win shut-down ?? BIOS Error? Forumhttp://www.tomshardware.com/forum/ [...] o-problems ForumComputer shutting down during game play ForumPhenom II 550 shutting down during prime 95 ForumSystem shuts down after "Windows is loading files..." during Vista ins ForumComputer Shuts Down Suddenly ForumWindows 7 shut down during file transfer from XP machine ForumNew Build, Shut down ! no beeps! ForumSudden loss of hard drive recognition in BIOS / Unable to boot ForumProblems with initial setup of p8z77-v lk. need help! ForumSystem starts up and shuts down repeatedly after PSU replacement ForumComputer shutting down during Skyrim ForumLaptop suddenly shut downs ForumNew gaming PC. Thoughts? Forum[Help] New Gaming Setup [PC/equipment] Forum[Solved] New Build shuts down and won't start back up More resources Read discussions in other Systems categories Homebuilt New Build Prebuilt Cases Power Supplies RAM CyberPower !