I have a system which is completely silent when I turn it on. It used to work fine. I tested the PSU with a PSU tester and it runs fine. The power switch was flimsy and it didn't feel solid. I suspect it went bad. How do I test it? I have a multimeter.
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What happened that makes your think it went bad? Did the system stop running or what?
you put your multimeter on the ohms (resistance setting. you should have "infinite" resistance. then, when you press the button, you should get continuity (no resistance) or very close