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PSU Issues? Can you help?

B

bho597

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Jul 9, 2020
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Just built my first PC yesterday and tried running a game for the first time (Valorant). When I got into a match, my PC completely shut off and wouldn't turn on until I unplugged the PSU and plugged it back in. Before unplugging, the power button light and the motherboard light were still on but pressing the power button on the chasis didn't do anything. Any suggestion or advice is appreciated!

CPU: AMD Ryzen 9 3900X
CPU Cooler: be quiet! Dark Rock Pro 4
Motherboard: ASUS AM4 TUF Gaming X570-Plus (WIFI)
Memory: Corsair Vengeance LPX 32 GB (2 x 16 GB) 3200
Storage: 1x SSD, 1x HDD
Video Card: Radeon RX 5700 XT
Case: Corsiar Carbide Series SPEC-DELTA RGB (3 front fans and 1 rear)
PSU: EVGA 650 Watt (not modular)
 
Loosen the motherboard's screws, unplug everything and reassemble. Make sure the right cables are plugged.

If it doesn't work, try another PSU and/or return the one you have.

BTW, not related to the current problem, Vengeance LPX is known to have compatibility issues on Ryzen.
 
Make sure Bios is updated on the Motherboard and all relevant drivers are up to date.
Set Bios to default values.
 
if you cant power on, id suggest re-assembly.
are we talking new components, or used?
 
Check all your connection on the PSU, remove any power adapters and so on. If that doesn't fix it then replace the PSU
You might also have a case short so look for that
 
I can see a few issues:
TUF Motherboard
LPX Ram
XT 5700 GPU
all of them have had their share of issues.
Just one quote from a member here with experience: TheLostSwede
"As long as it's not Corsair LPX modules if you're going for Ryzen, as a lot of people have had problems with those.
Not sure why, but I used to own a set myself and they would never work at over 3000MHz.
In general it's not, but there's something going on with the LPX modules.
Other RAM from Corsair appears to work fine. "
 
Note that cases are designed to support 1000s of different motherboards. So, it is common for cases to have more motherboard mounting points than boards have mounting holes. A common mistake by the less experienced and distracted pros alike is to insert one or more extra standoff in the case under the motherboard. Any extra standoff creates the potential for an electrical “short” in one or more circuits. The result ranges from "nothing" happening (everything works perfectly) to odd "intermittent” problems to "nothing" (as in nothing works at all :(). So, you might want to verify you only inserted a standoff where there is a corresponding motherboard mounting hole by pulling the board and comparing mounting holes to inserted stand-offs. You might also reassemble the components outside the case and on a large bread/cutting board.
 
It's weird, but here again EVGA PSU with system issues.....
 
StarExplorer said:
It's weird, but here again EVGA PSU with system issues.....
Click to expand...
I would not read anything into that - yet. EVGA PSUs have become very popular as of late. So with many more being used, it is only natural to see more examples of problems. The question is, "is a higher than normal "percentage" of EVGA PSUs failing?" I'm not seeing that.

A person visiting a Toyota service center could easily think Toyotas are unreliable cars because they see nothing but broken down Toyotas. But we know Toyotas are some of the most reliable.

Still, we saw the same thing with Corsair PSUs a few years ago. Only there, the problem really was a greater percentage failing and we learned why. Corsair changed OEM suppliers on their lower and entry level supplies and went with less reliable innards. It used to be if it said Corsair on the PSU, you knew you had a good one. Not any more. :( And I note Corsair's reputation has taken a serious hit for that too. I used to recommend Corsair PSU. Now I advise folks avoid their VS and CS series.

I sure hope EVGA does not make the same mistake. Wait and see.
 
Frick said:
It is not underpowered.
Click to expand...
He hasn't said which one he had. Only 650W and EVGA. If it is a crappy EVGA his PSU is underpowered, if it is a high-end EVGA then it should be OK. But of course a bad sample is even possible with a high quality power supply.
 
-The_Mask- said:
If it is a crappy EVGA his PSU is underpowered
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Nah! That's not how it works. Crappy has to do with purchase choices, not whether under, over, or ideally powered - assuming the PSU is not faulty. Even EVGA's budget, non-80 PLUS certified 650W supply has plenty of power (52A on the +12V rail). It just does not have a flat efficiency curve of at least 80% and may not have the best regulation or ripple suppression. But it still complies with the ATX standards.
-The_Mask- said:
But of course a bad sample is even possible with a high quality power supply.
Click to expand...
Huh?
 
Bill_Bright said:
Nah! That's not how it works.
Click to expand...
It is sir. Crappy unstable double forward design with group regulation from 650W is not enough for a PC like his.
But it still complies with the ATX standards.
Click to expand...
Certainly not with the last ATX 2.52 spec, not even the ATX 2.4 spec, if you're lucky it's full compatible with the ATX 2.32 spec.

Huh?
Click to expand...
Even a high quality power supply can be defective.
 
-The_Mask- said:
It is sir. Crappy unstable double forward design with group regulation from 650W is not enough for a PC like his.
Click to expand...
No, it is not how it works. And do the math using his components. 650W with 52A on the 12V rail is plenty.

Crappy and unstable are NOT the same thing as underpowered. A PSU that is crappy and unstable does NOT mean it is underpowered. It means it is either faulty, or poorly designed and poorly made.

An under-rated PSU that is overstressed can result in an unstable computer. But that is not the same thing as under-powered. For example, if the components need 500W and you got a top-quality Titanium 350W supply in there, it is under-rated (poor purchase choice) and can result in unstable operation.

A "crappy and unstable" 850W supply in a computer that only needs 300W can still result in an unstable computer that suddenly shuts down.
-The_Mask- said:
Even a high quality power supply can be defective.
Click to expand...
Agreed. I misunderstood what you were saying there. My bad.
 
1. Considering that the game was running, the likelihood of shorts due to mounting is highly unlikely. The 1st troubleshooting step is to look at Event Viewr logs and see what triggered the shut down.

2, It's not common, but having to de-power the MoBo is sometimes required ... i wuldn't know how to explain other than to say until a chip completely loses power it doesnt flush data ... and until depowered, you can't boot. PSU can be a problem, but those are troubleshooting steps I wouldn't look at until looking at logs.
 
AMD says 600 min 700 recommended.. And he’s at 650, from a questionable source? I get nervous as I pass the halfway mark on a power supplies rating, much less being at 3/4 capacity when the system is loaded. Gpu power draw is intense, like an old i7 hexacore, it never fails to impress its hatred for polar bears.
 
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