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On 04/03/2011 10:52 AM, Bill Horne wrote: > On 04/03/2011 09:26 AM, Jerry Feldman wrote: >> Additioal question how canyou test if power supply is dead with a >> multimeter? I'm not a hardware guy > > Whoa! > > Switching power supplies have to be tested with a load on them: they > need the load to deliver proper voltages, and can be damaged if started > without one. > > The problem is that you can't be sure if the motherboard is in trouble, > the power supply, etc., without sectionalizing the components, and > you'll need a test jig to do that. Something as simple as a three > automobile brake lights will usually do, but you'll need a 6-volt lamp > (good luck finding one!) for the +5 lead. You can build a test jig with > lamps or resistors, and I always intended to but never did: it's easier > to swap in a new supply. I should have one I can lend you if you want to try that.
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