markiemrboo Posted July 28, 2004 Posted July 28, 2004 (edited) lol personally I would check with another PSU, then I would most likely blame the motherboard. Actually, thinking about it... do you have a floppy drive in this computer? Make sure that power connector is on alright. Mine does the exact same thing if I aint put that connector back on properly and I usually get it on wrong, they're so fiddly! Scared the crap out of me when that first happened to me *press power button, cathodes blink.... runs to the toilet* EDIT: Sounds like that could possibly be the problem. Edited July 28, 2004 by markiemrboo Share this post Link to post Share on other sites More sharing options...
OptikaliLLusion Posted July 28, 2004 Posted July 28, 2004 Unplugged the controller and the floppy.. no luck Share this post Link to post Share on other sites More sharing options...
hardnrg Posted July 28, 2004 Posted July 28, 2004 tried testing the psu by itself??? unplug it from everything, then stick a paperclip in the green and any black hole... edit: well, you have to have it connected to the mains obviously, just disconnect it from the mobo etc Share this post Link to post Share on other sites More sharing options...
markiemrboo Posted July 28, 2004 Posted July 28, 2004 From an ATX Spec sheet found at http://www.formfactors.org/developer/specs/atx/atx2_1.pdf 4.1.3 Power Signal Control Definitions 4.1.3.1 PS_ON# PS_ON# is an active low signal that turns on all of the main power rails including 3.3VDC, 5VDC, -5VDC, 12VDC, and -12VDC power rails. When this signal is held high by the PC board or left open circuited, outputs of the power rails should not deliver current and should be held at a zero potential with respect to ground. Power should be delivered to the rails only if the PS_ON# signal is held at ground potential. This signal should be held at +5VDC by a pullup resistor internal to the power supply. I'm not an electrician or anything, but I would guess you would short pin 14 (or whatever one is a green wire, usually, apparently) with pin 15 Share this post Link to post Share on other sites More sharing options...
OptikaliLLusion Posted July 28, 2004 Posted July 28, 2004 No green and black hole on it Share this post Link to post Share on other sites More sharing options...
markiemrboo Posted July 28, 2004 Posted July 28, 2004 He meant the hole with the green wire coming out of the connector, and any hole with a black wire coming out. None of those? Share this post Link to post Share on other sites More sharing options...
OptikaliLLusion Posted July 28, 2004 Posted July 28, 2004 like in the mobo power cable? yes, there are those Share this post Link to post Share on other sites More sharing options...
hardnrg Posted July 28, 2004 Posted July 28, 2004 yeah, i gotta Tt psu and it has a green wire on the main mobo connector... so i'm guessing yours does too? ok, so go get a paperclip... Share this post Link to post Share on other sites More sharing options...
markiemrboo Posted July 28, 2004 Posted July 28, 2004 Any ATX PSU that complies with the standard it will be pin 14 . Some Dell's don't, they have a different connector which looks like a normal ATX one but actually isn't, the plug on the motherboard is different too... obviously Share this post Link to post Share on other sites More sharing options...
Agallion Posted July 28, 2004 Posted July 28, 2004 Any ATX PSU that complies with the standard it will be pin 14 . Some Dell's don't, they have a different connector which looks like a normal ATX one but actually isn't, the plug on the motherboard is different too... obviously yea and if u plug in a normal mobo to that dell psu IT FITS but the motherboard gets fried! other way around too Share this post Link to post Share on other sites More sharing options...
markiemrboo Posted July 28, 2004 Posted July 28, 2004 What a great idea huh? But yeah just poke one end of a paperclip in the hole where the green wire is and the other end in a hole where a black wire is like hardnrg said Share this post Link to post Share on other sites More sharing options...
OptikaliLLusion Posted July 28, 2004 Posted July 28, 2004 Plugging a paperclip into a power supply doesn't exactly sound safe... especially when the power is connected to it Share this post Link to post Share on other sites More sharing options...
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