Computer not turning on after storm

Feb 24, 2018
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Hello,


Yesterday, my PC was working just fine. Today, after a storm, it does not power on while connected to the motherboard.

Overnight, my family was woken up by a very near lightning strike, but I was not, as I am downstairs and a heavy sleeper. I wake up this morning to find that the internet is out. I go upstairs to see what was up with our 2 routers (1 AT&T and 1 local service), and the AT&T one only has the HomePNA light on and the local service (Mediacom) does not have any lights on. Some time later I go downstairs to power my computer on, and nothing happens. I tried all the different simple ways of troubleshooting this (different outlet, different cord), but nothing gives. After some research, I find the paperclip test. I try this test and the fans power on normally, showing the power supply is fine. I reset the CMOS by removing the battery, and nothing. It is not a faulty power button, either.

Could it be possible that there was a lightning strike that knocked both routers and my motherboard out by striking the data cables (and travelling through the Ethernet cable to my motherboard)? And if so, how likely is it for other components to be damaged? I have not tested other components individually.

Specs:
Seasonic SS-520GB Active PFC F3 power supply
Nvidia Gigabyte GTX 1070 graphics card
Intel i7 8700 GPU
Z370 AORUS GAMING 5 motherboard
2x 8gb g.skill ripjaws ddr4 RAM

Thank you so, so much for reading this far, it really means alot.
 
Solution
Oh, i didn't say everything.

Yes, my boards died because of the surge came through ethernet.

My socket has a power-surge protection for ethernet as well! Downside: It limits my speed to 100MBit (and it costs more).

Had the surge come through the PSU, modern PSUs of today usually would have "stopped" it before the MoBo got fried (perhaps needing only a new fuse, or a new PSU at worst).

You had bad luck.
Feb 24, 2018
3
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Where can I find an 'anti-surge' and were all of your other components fine?

Also, thank you very much for taking the time to reply.
 
Feb 24, 2018
3
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Again, thank you for replying, but the answer wasn't exactly what I was looking for.

Since the power supply is 100% working, I am under the assumption that the surge came through the Ethernet, as both the routers were fried, but only them in my house. The computer is already hooked to an AC surge protector. My question is could a surge cone through Ethernet and how would it affect my PC components?
 

ragnar-gd

Reputable
Oh, i didn't say everything.

Yes, my boards died because of the surge came through ethernet.

My socket has a power-surge protection for ethernet as well! Downside: It limits my speed to 100MBit (and it costs more).

Had the surge come through the PSU, modern PSUs of today usually would have "stopped" it before the MoBo got fried (perhaps needing only a new fuse, or a new PSU at worst).

You had bad luck.
 
Solution