Hi, when testing my PSU output for my laptop, the reading on my voltmeter was 15v, but on the power brick it shows that it is supposed to output 19.5v, should I be replacing the PSU or does this not have significant impact? BTW, I am testing with ACV at 150 level, not sure to use ACV or DCV.
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Use DCV it is direct current!
As said use DC usually the 0-20 VOLT RANGE on most multimeters...