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Bonus for Patreon: Diagnosing a Faulty Power Supply
🕑 Added 2021-09-30 14:47:27 +0000 UTCWell, attempting to diagnose it.
Hey everyone! Hope all is going well. We recently pushed the NZXT H510 Flow behind-the-scenes video to you as a Patreon exclusive (fun fact: initially typed "explosive" instead of "exclusive," but maybe that's because I'm about to write about a Gigabyte power supply).
Today, Patrick Stone looks at the Gigabyte Aorus power supply -- this one has actually been good to us for years and isn't the same as the GP series -- to try and diagnose its behavior. We had to pull this from a benchmark system because it was shutting down when under about 400W of load, despite being otherwise fine. This sounds like it could be a faulty OCP or something similar, and so Stone ran it through all the protection testing and some more.
It's mostly a fun way to show some of the tools we have available for extra diagnosis of hardware. We can't always find the answer, but we can at least quickly find out that we *won't find the answer* -- and this is important in troubleshooting. Sometimes, you just have to say, "we've done enough, time to move on," lest it becomes a huge time sink.
Enjoy!
Comments
Hows about some background music? ;o=(|)
Ofc it does dry out over time, but you trying to replace it would do more harm than good probably, unless you really know what you're doing.
aero cool psu will use them ever again . i got magic blue smoke and horrible coil whine
Roger Fujii
I agree with @Ian DeVries - you should use the scope and see what the slew rate of the load tester is. If the load tester's slew rate is larger that than a mobo, then it isn't stressing the PSU as much. "Randomly quits" needs to be elaborated more. Does this mean that the OCP was triggered? Seems that PSUs needs to be power cycled when this even occurs. If not, then it might be browning out as mentioned and not sure you can replicate a transient like that with your load tester...
gatordontplay417
I had a Silverstone SX700-PT and replaced so many part thing they were making noise it turned out to be the PSU and I replaced it with a Corsair SF750 and it was like I had a entirely new PC. The last one would crash out my entire PC sometimes just like the issue you guys are having. I think a Lian-Li TU150 I had got so hot it cooked the Silverstone PSU prematurely but it still would function. I think what is wrong with your PSU is it is just an older well used PSU.
Maybe stupid question but saw what looks like thermal compound inside the PSU? Looking at https://www.kitguru.net/wp-content/uploads/2018/09/in_bridge.jpg Any possibility it pumps out or dries out?
I have a similar issue with a 6 year old Corsair power supply. The lack of documentation around how to know when an issue is power supply related led me to replace every single component over 6 years trying to fix it where I only resolved it a few weeks ago. It'd be cool to have some GN content around how to tell which component is going wrong. It'd fit well in the current climate where it's difficult to get replacement parts so making a mistake could be costly. For reference power would cut for me after a few hours of shadow of mordor. That failure condition was with a 5600x, 1080ti and CX550M.
I see you checked two PSUs. Did you already confirm that the second one works in the build while the first one shuts down? I might have missed that in the video.
I would suspect loose solder joints on the power supply side of the modular connector plugs, or a capacitance issue where in a case of switching from low to high load very quickly is causing the rectifiers to brown out.
ZarconDeeGrissom
happy GN Patrick and SFIA day y'all. B) great day to be colecting hyper-dimensional-aether for the dark-matter foundries while limiting wast heat shedding to avoid baking in entropy, and diagnosing PSUs, lol.
