Computer doesnt turn on Tags: Power Supplies Computers Hewlett Packard Powersupply Cable Components Last response: November 26, 2012 7:44 PM in Components Share ramteja November 26, 2012 7:34:50 PM Hello, my hp pavillion desktop 6720f, has a wierd problem. Powersupply turns off immediately when I press the start button. If I remove the PSU521 cable from the powersupply.. all the fans run.. but the computer doesnt turn on.. with psu521 cable in, no fans turn on.. Can some one help me . More about : computer doesnt turn socialfox a b ) Power supply November 26, 2012 7:44:06 PM What exactly is this PSU521 cable? It would be best if you can describe how the cable looks. In addition, people I have met with a similar problem have found their motherboard to be at fault. Edit: Also give this a intensive/thorough read http://www.tomshardware.com/forum/261145-31-perform-ste... Can't find your answer ? Ask ! Publish Related resources: ForumJust built a computer , doesnt turn on? ForumComputer doesn't turn on ForumPSU pass the paper clip test, computer still doesnt turn on ForumMy new computer doesn't turn on, need help ForumMy computer doesn't turn on anymore? Forumhttp://www.tomshardware.com/forum/ [...] o-problems ForumSony vaio desktop computer doesnt turn on ForumComputer won't turn off, but will turn off / doesn't display an image. ForumNew build arrived - however, computer doesn't turn on. ForumComputer was running and died, now doesn't turn on again ForumComputer doesnt turn on sometimes ForumComputer doesn't turn on ForumComputer Doesn't Full Turn on After Sleep. ForumComputer doesnt turn on, is it the power supply? ForumComputer doesn't always turn on... ForumHelp computer doesnt turn on (sometimes) ForumComputer shuts down abruptly and doesnt turn on after that ForumOpinions and price of this PSU........... ForumNo sound coming from my computer ForumComputer doesnt turn on sometimes More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !