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 Proximon a c 113 B Homebuilt system 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. Can't find your answer ? Ask ! Publish Related resources Computer shut down ; freezes at BIOS screen Forum Computer hangs at motherboard splash screen during initial boot up Forum Computer shutting down when idle regardless of config Forum Newly built PC shuts down during games Forum Why does PC auto-restart after Win shut-down ?? BIOS Error? Forum http://www.tomshardware.com/forum/ [...] o-problems Forum Computer shutting down during game play Forum Phenom II 550 shutting down during prime 95 Forum System shuts down after "Windows is loading files..." during Vista ins Forum Computer Shuts Down Suddenly Forum Windows 7 shut down during file transfer from XP machine Forum New Build, Shut down ! no beeps! Forum Sudden loss of hard drive recognition in BIOS / Unable to boot Forum Problems with initial setup of p8z77-v lk. need help! Forum System starts up and shuts down repeatedly after PSU replacement Forum Computer shutting down during Skyrim Forum Laptop suddenly shut downs Forum New gaming PC. Thoughts? Forum [Help] New Gaming Setup [PC/equipment] Forum [Solved] New Build shuts down and won't start back up Forum More resources Read discussions in other Systems categories Homebuilt New Build Prebuilt Cases Power Supplies RAM CyberPower !