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The EXTREME Overclocking Forums are a place for people to learn how to overclock and tweak their PC's components like the CPU, memory (RAM), or video card in order to gain the maximum performance out of their system. There are lots of discussions about new processors, graphics cards, cooling products, power supplies, cases, and so much more!
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05-07-2010, 05:02 PM
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#1 | ||||
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Extreme Overclocker
Senior Member
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How to test PSU with multimeter
Thanks guys! |
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05-07-2010, 05:06 PM
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#2 | ||||
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Canuck Chicken Chaser
Senior Member
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Easiests to test are the 12V and 5V off a molex, then the 3.3v (I think? The orange one) from a SATA cable.
Keep system idle (powered on and hooked on... idle on desktop) and check voltages. Then apply as much load as possible (OCCT PSU test does a good job at that... or use your favourite CPU tester along with OCCT GPU) and check voltages again. |
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05-07-2010, 05:53 PM
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Extreme Overclocker
Senior Member
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Quote:
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05-07-2010, 06:01 PM
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#6 post whore
Senior Member
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They shouldn't fluctuate a lot. 0.01 or 0.02 isn't such a big deal since cheap multimeters don't resolve that accurately anyways.
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05-07-2010, 06:02 PM
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fo mo yeers
Senior Member
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pretty stable, what are you seeing? How much fluctuation?
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05-07-2010, 09:25 PM
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#6 | ||||
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Santa Hat!
Senior Member
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They can fluctuate a little bit between idle and load. I would say no more than 0.10v is about normal unless you have a high quality PSU. Some of my better PSUs only fluctuated about 0.01v
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