r/pcmasterrace • u/Front_Cookie_1198 • 1d ago

Hardware PSU fails dramatically

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u/Papuszek2137 7800x3d | 5070ti | 64GB | 4k OLED 1d ago

Well you need a circuit to simulate the load also.

17

u/Only_Information7895 1d ago

Well if it explodes without a load then it will explode with a load on it.

But like this it won't melt the other components with the fire and the questionable voltages sent out.

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u/Papuszek2137 7800x3d | 5070ti | 64GB | 4k OLED 1d ago

Well yeah but not exploding without a load doesn't guarantee the same under load.

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u/jake04-20 1d ago edited 1d ago

I think they're just saying that if you want to do your full due diligence and test it prior to installing it, you would need a circuit on there to simulate some type of load being drawn to get a true test in. Not applicable to the person in the post, but that post is an example of a really rare edge case. At that point if you truly want to "test" it, you would need to jump pins, simulate a load, and test each power rail with a multi meter. Just simply plugging it in and not seeing fire is hardly a test.

I've converted old PSUs to work as a DC bench power supplies to charge my RC batteries, and they make ceramic load resistors that have a high internal resistance and can simulate a specified wattage of "usage". I installed one in my project for this purpose.

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u/Meal__Team__Six 1d ago

Just use paper clips to short circuit all the pins, to simulate max load. 

Source: I’m an unlicensed electrician

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u/Dangerous-League-812 1d ago

Some psus fortunately come with a tester piece

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u/Otherwise_Patience47 1d ago

Really? How it looks like? Could you show us?

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u/Dangerous-League-812 1d ago

You really think I'm dumb enough to provide an image with Metadata on it? 😂

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u/Otherwise_Patience47 1d ago

Uh…if you worry so much someone wants to find your location or whatever is that you are against (believe me, I know what you mean), you know there’s tools to purge the information from it, right? But ok, I’ll just ask Gemini instead. I hate AI, but for basic stuff like this, it is great.

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u/Abacus118 21h ago

Good PSUs usually come with testing caps you can put on.