[Solved] Computer crashes after new PSU

M

Magix

Weaksauce
Joined
Jul 27, 2012
Messages
109
Hi! I'm guessing the answer is obvious: faulty PSU, but I'll ask just in case.

I upgraded my PSU yesterday to a beQuiet Straight Power 11 (850w), in preparation for other updates. Previous PSU (BitFenix 650w) has been working fine with the current setup for around a year. Didn't change anything else.

The computer runs fine for maybe ~4 hours, then the it just kind of dies. Monitor says no sources available, audio stops etc. The fans in the computer are still running. Pressing the power button, or even holding it down for 10 seconds, doesn't have any effect. To shut it down, I had to flip the PSU switch. This has happened twice so far.

Is it a bad PSU?

And secondarily, is this sort of crash potentially harmful to the components? I'd like to reconnect everything between the PSU/mobo and try again, but if it's risky, maybe it's not worth it.

The rest of the system is: EVGA GTX 1080, Asus Prime b550-plus, AMD Ryzen 5 5600x, Fractal Define r5, 16gb DDR4 (ripjaws something). Running windows 10

Thanks!
 
Magix said:
To shut it down, I had to flip the PSU switch.
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The mobo is definitely not happy about something. Sounds like it would be easy to merely pop the original PSU back in?

I might try some stability tests with Prime95 / MSI kombustor to make something happen sooner. Double check the PCIe power connections on the GPU.
 
duronboy said:
The mobo is definitely not happy about something. Sounds like it would be easy to merely pop the original PSU back in?

I might try some stability tests with Prime95 / MSI kombustor to make something happen sooner. Double check the PCIe power connections on the GPU.
Click to expand...
I looked at the wires and it seems like the CPU cable might not have been properly inserted into the motherboard. Do you think it's safe to try it again, and run those stability tests? I'm worried about it bricking my CPU or something. Is that even possible, that it wasn't making a proper connection but still worked for multiple hours?

I can try it with the old PSU if all else fails, yep, but it's quite a hassle to rip the existing one out of the case and rewire everything. But I'll try that if all else fails.
 
Magix said:
the CPU cable might not have been properly inserted into the motherboard.
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you're talking about this guy?

saejaerj.png
 
I'm not a mobo engineer, but I assume it is to provide power to CPU/memory.

I would just try it again with that, and other connectors reseated.
 
duronboy said:
I'm not a mobo engineer, but I assume it is to provide power to CPU/memory.

I would just try it again with that, and other connectors reseated.
Click to expand...
Yep, it provides additional power to the cpu if you're ocing. Some mbs require it to run some don't. If you've already reseated all of your connections and it continues to happen, RMA that bitch.
And no, it shouldn't hurt anything to test it. That's a bummer, you picked a solid unit :(
 
It looks like it was the connection, I ran those benchmarks for a few hours and been using the computer since reseating the connections, no problems so far. Thanks guys! Looks like I'm ready to install the RTX 3080 ti when it arrives :)
 
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