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Windows 7: USB Power Surge/Device shocked me on touch

11 Feb 2016   #21
UsernameIssues

W7 Pro SP1 64bit
 
 

The static charge that was on the controller most likely traveled to the USB port on the computer. From there, it should have been sent to ground via ESD protection circuits* and the ground connection on the APC battery backup. Your APC unit might have a light or some other indicator to tell you that it is happy with the ground that it has from the wall outlet.

*rated to handle 8kv to 15kv - depending on the vendor.
...which is too low - IMO :-(

8kv rating from NXP (PDF)
15kv rating from TI (PDF)

So, to answer your question: "Could the controller of fed electricity back into my motherboard and damaged it? " Yes, it could have; despite the ESD protections built-in.


My System SpecsSystem Spec
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11 Feb 2016   #22
bitplayer

Windows 7 Home X64
 
 

Thanks Username ISsues, so what kind of signs would I be looking for if I damaged my board? And if so could this lead to future damaged parts like my GPU or cpu?
My System SpecsSystem Spec
11 Feb 2016   #23
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

You probably won't see anything. You just use your system and it will let you know if other damage has been done.
My System SpecsSystem Spec
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11 Feb 2016   #24
bitplayer

Windows 7 Home X64
 
 

Meaning the fact that Im using it and everything appears to be operating means Im probably in the clear?
My System SpecsSystem Spec
11 Feb 2016   #25
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

You want guarantees. There are no guarantees. Just use the system as you normally would and be happy. What happens down the road, happens.
My System SpecsSystem Spec
11 Feb 2016   #26
UsernameIssues

W7 Pro SP1 64bit
 
 

There are no user level tests to determine if ESD has done damage to the motherboard. You can pay to x-ray each chip, but it would be cheaper to buy a dozen new computers.
My System SpecsSystem Spec
11 Feb 2016   #27
bitplayer

Windows 7 Home X64
 
 

Sounds like Im just being paranoid about this. Huh?
My System SpecsSystem Spec
11 Feb 2016   #28
UsernameIssues

W7 Pro SP1 64bit
 
 

Your concern is normal/valid...
...but there is no cost effective way to know if damage has been done.
My System SpecsSystem Spec
11 Feb 2016   #29
bitplayer

Windows 7 Home X64
 
 

What kinds of things should I be on the lookout for then?
My System SpecsSystem Spec
11 Feb 2016   #30
UsernameIssues

W7 Pro SP1 64bit
 
 

If the USB port that the controller was plugged into gets to where it will not recognize a variety of devices, then that is probably the result of this ESD event. If that starts happening, just use other USB ports.

I doubt that the damage would spread to things like the graphics card.
My System SpecsSystem Spec
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 USB Power Surge/Device shocked me on touch




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