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Max The Magnificent
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Re: ESD seasons, geography, and grounding
Max The Magnificent   12/1/2014 10:41:21 AM
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@DrQuine: Why not plug the banana plug into the grounded third prong (after confirming that the outlet is properly grounded) of an outlet?

That's essentially what I am now doing with the $7 ground plug adapters that someone recommended in an earlier comment.

DrQuine
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ESD seasons, geography, and grounding
DrQuine   11/28/2014 12:25:59 PM
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ESD is tricky stuff, not only does it vary seasonally (the classic example of walking across a rug in the winter and then touching a grounded device) but also it varies geographically (Albuquerque, New Mexico is so dry that special precautions must be taken in manufacturing facilities). Regarding a simple home ground, I must say that I'm a little uneasy discharging unwanted high voltages into the moidst of a (presumably) well grounded laptop computer.

Why not plug the banana plug into the grounded third prong (after confirming that the outlet is properly grounded) of an outlet?

mhrackin
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Re: power strip and ground plug adapter
mhrackin   10/29/2014 12:55:18 PM
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Try disconnecting the USB connection to the PC and see if the problem recurs.  I use the 1500VA APC ones in the lab at work.

Max The Magnificent
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Re: power strip and ground plug adapter
Max The Magnificent   10/29/2014 12:53:33 PM
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@mhrackin: Is it powered by a UPS?  I've had some issues with the UPS monitoring SW doing things like this.

It is indeed -- I have a honking big one (although I don't like to boast :-)

mhrackin
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Re: power strip and ground plug adapter
mhrackin   10/29/2014 12:49:21 PM
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Is it powered by a UPS?  I've had some issues with the UPS monitoring SW doing things like this.

Max The Magnificent
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Re: power strip and ground plug adapter
Max The Magnificent   10/29/2014 12:45:46 PM
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@mhrackin: I recall some recent postings on "Tales from the Cube" (on a sister site) that identified this as root cause of a number of strange occurrences.

Hmmm -- the main tower in my office keeps on locking up for no apparent reason -- we've scanned it for malware and viruses --- we've run burn-in software to stress the machine and wee've also run deep memory tests overnight -- nothing shows up. I wonder...

mhrackin
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Re: power strip and ground plug adapter
mhrackin   10/29/2014 12:38:47 PM
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@max: "that was the very first thing I checked"

So what else did you check?  How about your "home away from home" office?  I don't know how recent the building is, but even in very new commercial space, I've found poor grounding practices that can result in significant ground differences between separate branch circuits even in the same room! I recall some recent postings on "Tales from the Cube" (on a sister site) that identified this as root cause of a number of strange occurrences.

mhrackin
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Re: power strip and ground plug adapter
mhrackin   10/24/2014 3:26:55 PM
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@max: well, in the immortal words often heard on "Laugh-in": Socket to me! Joanne Worley IIRC.... oops! it was Goldie Hawn.

Clive
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Re: power strip and ground plug adapter
Clive"Max"Maxfield   10/24/2014 10:25:16 AM
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@Sanjib: Also, it is verified that your kictchen socket is connected to ground/Earth... ;)

Yes -- that was the very first thing I checked LOL

Sanjib.A
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Re: power strip and ground plug adapter
Sanjib.A   10/24/2014 10:13:01 AM
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@Max: Great to hear that it worked well without any problem. :) Also, it is verified that your kictchen socket is connected to ground/Earth... ;)

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