Can a PC kill a PSU?

[MoveQuick]

Girlfriends PC:
Asus B-450-i Strix Gaming

Ryzen 2600X

Samsung EVO 860 1TB SSD

Corsair 16gb Vengeance LPX RAM

EVGA GTX 1070ti Black edition

Corsair H100i Pro

Corsair SF600 Platinum PSU (The issue)

 

Girlfriend's PC Was built end of last year, ran FLAWLESSLY up until a week ago.

 

Girlfriend's PC one day turns off randomly.

Press power button, nothing happened

Flick off PSU Switch, flick back on, press power button

PSU makes a *Click* sound but PC does not power on. 

Repeat ad nauseum.

 

I unplug the modular cables, plug them into MY SF600 Platinum in my PC. Her computer boots up.

 

RMA PSU

 

Install NEW PSU (Used the same modular cables, I feel like maybe this was a mistake. I just assumed since they worked when plugged into MY PC that they were not the issue.)

 

Computer boots up and runs perfectly for about an hour and a half

Randomly turns off. Repeats previous issue with that the OLD PSU had.

I now have 2 PSUs that are both dead, click but no power to PC.

 

Tested both of these dead SF600s on MY PC.

Same behavior, both PSUs are dead.

 

Checked Mobo for any signs of bad capacitors or damage, nothing

Checked SSD no issues

Removed Graphics card, looks fine

Removed RAM all looks fine

 

Can a PC kill PSUs?! or have I somehow gotten extremely unlucky?

 

Things to note:
Please do not say that it is not a big enough PSU, my considerably more powerful machine runs on the SAME PSU with no issue. (9700k, 32gb ram, RTX 2080ti)

No, I have not Overclocked anything, I have however undervolted her CPU and GPU to stable undervolts, this was done last year, no issues. (I dont know what they are set to right now because I cannot turn on the PC.) 

All Mobo Standoffs were secure.

 

I appreciate any help anyone can provide, I'm at my wits end.

[Anghammarad]

Faulty cabling, shorting out in special accasions (heat, movement, whatever) will kill psu

                                                                                                         - PCFuzius 837 BC

 

 

 

[MoveQuick]

Just now, Anghammarad said:

Faulty cabling, shorting out in special accasions (heat, movement, whatever) will kill psu

                                                                                                         - PCFuzius 837 BC

 

 

 

So it could be the PSU cables that came with it that are killing the PSU? TBH this would be the best case scenario because then I could change the cables with the next RMA.

[Anghammarad]

It is possible. I think someone in my wider "circle" had faulty cables with his new PSU once

[MoveQuick]

5 hours ago, Anghammarad said:

It is possible. I think someone in my wider "circle" had faulty cables with his new PSU once

Only thing is that it worked great for about 9 months and now all the sudden these PSUs are dying. Can cables just go bad like that?

 

[Anghammarad]

7 minutes ago, MoveQuick said:

Only thing is that it worked great for about 9 months and now all the sudden these PSUs are dying. Can cables just go bad like that?

 

Yes everything can have a fault which comes to "light" after different events like often changing temperatures (+20° then cooling down 20° lookie at the gforce 7xxx series cards) as for cables, if there is faulty isolation warming up and cooling down may help braking down a cables isolation. Then moving cables around or vibration to harddrives/fans and hotter cables / cooled down cables may create a short which can kill the PSU/ other PC Components. 

 

This may just be a unhappy circumstance, who knows. I would have gone at the cableing with a multimeter to see if I can find a short.