Apple’s Worldwide Developers Conference to kick off June 10 at 10 a.m. PDT with Keynote address

The Keynote will be available to stream on apple.com, the Apple Developer app, the Apple TV app, and the Apple YouTube channel. On-demand playback will be available after the conclusion of the stream.

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NMRK Author

Level 1

8 points

"Burned" index fingers from using MacBook Pro trackpad: My index fingers, both hands. which rest on the computer next to the trackpad and/or are used on the trackboard are painful, feel like they have been burned and, I can barely move them. I did

My index fingers, both hands. which rest on the computer next to the trackpad and/or are used on the trackboard are painful, feel like they have been burned and, I can barely move them. I did not have this problem before I bought my new Mac--specifications below: It hurts and I do not have the problem with my windows operating systems computers or iPads or Galaxy by Samsung equipment.

It feels like radiation is leaking through the computer case. Is there any radiation involved in the chips?

MacBook Pro

Model Identifier: MacBookPro11,4

Processor Name: Intel Core i7

Processor Speed: 2.2 GHz

Number of Processors: 1

Total Number of Cores: 4

L2 Cache (per Core): 256 KB

L3 Cache: 6 MB

Memory: 16 GB

Boot ROM Version: MBP114.0172.B06

SMC Version (system): 2.29f24

MacBook Pro, Mac OS X (10.0.x), An Apple pro did upgrade. Hate it.

Posted on Jul 27, 2016 10:40 AM

34 replies

Aug 2, 2016 7:18 AM in response to Csound1

I have done the measurement for another who doubted.

Then please, won't you share what you learned by doing that measurement?

Not everyone has the same ability to do different things like measure signal levels, or make beautiful illustrations, or take amazing photographs.

Csound1

Level 9

59,985 points

Aug 2, 2016 7:34 AM in response to Grant Bennet-Alder

The result was that I measured continuity between the house ground and the Mac (or the stage ground and the Mac) at pins 1 and 5. Using the 3 pin AC connector. But I am reluctant to suggest anything that may lead to an OP meddling with high voltage connections, for obvious reasons. So if there is more of this we'll take it to the lounge.

Aug 2, 2016 8:23 AM in response to Csound1

Based on your measurement, can we therefore assume that the "Voltage return" and the "earth ground" (if present) are tied together?

... and that the MacBook IS intended to be grounded to the house electrical system's earth ground, provided the two-meter AC power cord (the one with a grounding wire connection) is connected?

Csound1

Level 9

59,985 points

Aug 2, 2016 8:29 AM in response to Grant Bennet-Alder

Based on the measurement I took, I agree.

The ground connection is carried by a metal leaf inside the connector to the AC cord.

"Burned" index fingers from using MacBook Pro trackpad: My index fingers, both hands. which rest on the computer next to the trackpad and/or are used on the trackboard are painful, feel like they have been burned and, I can barely move them. I did