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Joined 3 years ago
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Cake day: June 12th, 2023

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  • It’s just safer, makes it impossible for the chassis to be un-grounded while the machine is powered. Doesn’t really matter if you’re the only one using the machine and trust yourself to always remember to check if it’s pluged in.

    I think this is rather unlikely to happen, but I should mention it:

    There’s also some potential to create objectionable current, since neutral is already bonded to earth. And if the PE is pluged into a into a different outlet (or somehow else has a diffrent path to earth), you create parallel paths. There would be small diffreneces between those paths in resistance (and voltage). That means a tiny current can circulate between them, instead of going through the intended ground path.

    Those currents should be small, simillar to what you already measured, but they create unpredictability (edit: worded this wrong, they don’t create unpredictability but rather are a sign of it, the unpredictability is caused by the closed loop to ground). If a real fault happens it could make the fault current split changing how a breaker responds. Also, if you have audio equipment, and the objectionable current path goes through it’s ground path you could get some noise/humming


  • I would say you’re right about it being just parasitic/capacitive current. And 4.1 uA and 43uA is thousands of times smaller than what would be dangerous, so that’s a no for the kill you part. If you’re very woried about the reading, you could add a 10k-100k Ohm resistor between the machine body and the ground while measuring, if voltage drops to near zero it’s fine.

    If you decide to add a ground, please don’t do it with a second plug. Replace the cord with a 3-core one, attach PE to both the machine body and motor.





  • The 9800X3D is a desktop chip, so I don’t think it’s relevant here. We are talking about a complete mobile device after all, not parts.

    In my country, for around 800$ equivalent, you can buy a used business laptop with long battery life and enoguh performance for web browsing, video playback, and office work. The cheapest macbook neo I found in my country is also around that price (820$), and the better configuration is about 900$.

    For the lower price, I could get:

    • a thinkpad t480 with multiple batteries (hot swappable) and 32GB SO-DIMM RAM
    • a latitude 7420 with 11th gen intel with 32GB soldered RAM, a ultraportable like the neo
    • a thinkpad t14 gen 2 with 11th gen intel or ryzen 5000 and 48GB RAM (one SO-DIMM slot, and one soldered module)
    • or if the size format didn’t matter a thinkpad p52 with 64GB RAM and a 90Wh swappable battery If I went with the higher-spec price, I could get a thinkpad p53 with a quadro RTX 4000 and 32 GB RAM, 512 GB ssd, and a Pantone-calibrated display.

    All of them have more ports the the neo, use standard SSDs, and don’t come from a company that is one of the most hostile to consumer rights and right to repair .

    One of the few, I take it?

    One of many. What I meant (and should have said, instead of being vague) is that I don’t expect this to be a real shift in policy, but rather a way to maintain profits when people have less disposable income, and I fully expect Apple to keep lobbing against right to repair, even when releasing ‘repairable’ devices.






  • To everybody acting like the desire path is the problem:

    1. If the problem for you is that it’s ‘bad’ or ‘illegal’, grow a spine so that when you need to break the law, for something that matters, you can do it with dry pants.
    2. If the design doesn’t take into account how people will interact with it, it’s bad and lazy. Only time it would be acceptable to ‘force’ a way to interact with something is when there are safety concerns, and there are none here.
    3. You are traped in a cage of your own making, break free or perish like the dog you are.