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... m 0 l Can't find your answer ? Ask ! Publish Related resources SolvedMy computer doesn't turn on Forum Solvedcomputer doesnt completely turn off and most of the time doesnt post. Forum SolvedAfter changing processor computer doesn't turn on at all. Forum SolvedComputer doesn't turn on, no led light on MOBO?! Forum Computer doesn't turn on, but there is a sign of power. Forum Urgent; computer sparked and popped now it doesn't turn on Forum Solvedcomputer suddenly doesnt turn on Forum SolvedJust built a computer, doesnt turn on? Forum I've upgraded my RAM and now after some BSODs the computer doesn't turn on. Forum when i turn on my computer it doesn't show the login Forum Trying to turn on computer, but it seems like the power button doesn't work. Forum SolvedComputer was running and died, now doesn't turn on again Forum SolvedComputer doesn't turn on Forum Power outage, now computer doesn't turn on. Forum I just bought new ram and computer doesn't turn on? Forum Computer Does turn on, but doesnt boot Forum When turn computer on screen doesn't come on Forum Computer doesn't turn on Forum Computer doesnt always turn on Forum Computer doesn't turn on. Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !