Is This PSU Failure? Tags: Power Supplies Hard Drives Components Last response: February 1, 2010 4:53 PM in Components Share AsianGlow February 1, 2010 12:31:22 AM Hey Forum! I just built an i7 PC, but it will not fully power up. I plug it in, turn the switches, hit power... -Fans whir, HDD's churn, lights blink but then... *pewwwww* Powers down, OMG oh it turned itself back on! -Fans whir, HDD's churn, lights blink but then... *pewwwww* Powers down & it continues like this nonstop It only stays on for less than 10 seconds... Is this PSU Failure? ---Specs--- *ATX - NZXT M59 Case *CPU - Intel Core i7-920 2.66GHz 1366 *GPU - XFX Radeon HD 5770 1GB DDR5 PCIE *HDD - Western Digital Caviar Black 1TBx2 7200 RPM *MOBO - EVGA 3-Way SLI with Tri-Channel DDR3 *PSU - Corsair 750-Watt TX Series 80 Plus *RAM - Crucial Tech 4GBx3 240-pin DIMM DDR3 *SYNC - Cooler Master V8 CPU Cooler More about : psu failure ekoostik February 1, 2010 1:15:46 AM First, welcome to the forums. I wouldn't suspect that PSU without checking some other things. Here's a good checklist to start, if it doesn't solve your problem report back what you tried: http://www.tomshardware.com/forum/261145-31-read-postin... m 0 l JohnnyLucky a c 248 ) Power supply February 1, 2010 2:37:34 AM +1 what ekoostik said. The checklist is a very useful tool. Sounds more that the BIOS is constantly rebooting. It could be something simple like one of the BIOS settings. m 0 l Can't find your answer ? Ask ! Get the answer jsc a c 144 ) Power supply February 1, 2010 4:53:58 PM Clear the BIOS. Your manual will tell you how. That may help. m 0 l Can't find your answer ? Ask ! Publish Related resources SolvedPSU or motherboard failure? Forum SolvedHow to diagnose PSU failure Forum SolvedLikelihood of PSU failure? Forum SolvedMobo or psu failure? Forum SolvedNew PSU installation causing unknown pc failure Forum SolvedPSU Dying or random failure? Forum SolvedPossible PSU failure? Forum SolvedPSU Failure, what to do? Forum SolvedSudden PSU failure? No recent component switches/upgrades Forum SolvedPSU or motherboard failure? Forum SolvedComputer keep randomly turning off (PSU Failure)? Forum SolvedComputer Restarting (possible GPU or PSU failure) Forum SolvedPSU failure? IDK HELP Forum Possible PSU Failure? Forum Unknown Failure - PSU or Motherboard? Forum SolvedFailure with PSU's Forum SolvedCould my system failure be from my PSU Forum SolvedPSU power failure? Forum could this be a PSU failure ? Forum SolvedPSU or MoBo failure? Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !