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 SolvedComputer doesn't turn on Forum SolvedComputer doesnt always turn on Forum 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; tried most of the steps on the PSU checklist Forum My computer doesnt recognize when i turn off my second monitor Forum power button doesn't turn on computer. reset does Forum Newly assembled computer turned on twice but now doesn't not turn on at all! Forum Computer doesn't come back from a display turn off. Forum With new PS, power button doesn't turn computer on normally. Forum My acer computer v5 will turn on but the brightness is very low, I've tried turning it up but that doesn't help. Is my screen Forum Computer turns off for reboot, doesn't turn back on automatically Forum Newly Built Computer Doesn't Turn On Forum Solvedcomputer suddenly doesnt turn on Forum Computer turns on but doesn't boot. CPU & exhaust fan turn on then stop after 6 seconds. Help! Forum SolvedJust built a computer, doesnt turn on? 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 More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !