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computer help - power supply failure ??
hyiu:
Hi All:
its FIXED !!! :cheers:
THANK YOU for all your help...
I disconnected all the power plugs... and then tried grounded #14 (green) with the power supply case metal.... (carefully...)
nothing happened....
so, I also use that to touch the PC case, and still nothing happened...
so I went buy a new power supply, tested it, and waaa laaa !!!
it worked !!!...
I'm all good !!! (and didn't electricude myself in the process....)
its all good now !!!!
Thanks again for all the pointers !!!
;D ;D :cheers: :cheers:
NightGod:
--- Quote from: boykster on July 10, 2007, 03:38:38 pm ---
--- Quote from: NightGod on July 10, 2007, 03:44:31 am ---
--- Quote from: boykster on July 10, 2007, 01:19:49 am ---
--- Quote from: NightGod on July 09, 2007, 11:51:10 pm ---In this instance, use the computer case as your ground-just touch the other end of the paper clip to anything bare metal in there.
--- End quote ---
actually, no, it wont' be the same ground, as the psu cable is unplugged. Use any of the black wires that lead to the harness as ground, it won't matter which one.
--- End quote ---
Actually, yes it will-I used this test method on dozens of different machines before I finally broke down and bought a PSU tester and I always grounded it out to the case. As long as the PSU is still attached to the case, the case is grounded to it-alternatively, you could ground it out to the metal shell of the PSU if you have it out of the case.
--- End quote ---
Sure, IF you leave it connected to the motherboard, which I wouldn't do while testing a powersupply. Also, if he followed Peale's directions
--- Quote from: Peale on July 09, 2007, 10:44:10 am ---If it's an ATX, unplug it from the motherboard and all drives. Take a paperclip and short pins 14 and any ground together. Pin 14 is usually a green wire. If it powers up, you have other issues.
--- End quote ---
and is confused which wire is ground, then touching the chassis of the PC isn't going to work. I'm not splitting hairs purposefully, but if he's having issues troubleshooting a PSU, consistant information is key to solving the problem.
--- End quote ---
Gods no, you never leave it connected to the motherboard, all that is required is that it still be screwed into the case. The metal shell of the PSU (and hence the case itself, since the metal PSU is in contact with the metal case) are ground, as well as the black wires in the 20/4 pin motherboard connector.
If you don't believe me, test it yourself-grab a known good PSU that's inside a computer, pop the connectors off the motherboard and drives and then ground out #14 to the case itself.
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