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    I think the Guru has this covered; running a 220V...

    I think the Guru has this covered; running a 220V only supply at 110V works, but don't run it beyond half rating as the input current is doubled when moving from 220V to 110V

    You really need a new...
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    I really like the fanless ASUS GT 1030, but it is...

    I really like the fanless ASUS GT 1030, but it is only about one third the power of the GTX 1650 and only 2GB but about half the price. It will also hardly tax your power supply, and needs no...
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    If you want to test the fan you could direct a...

    If you want to test the fan you could direct a hair dryer into the inlet and see if that triggers the fan.
  4. Because if your neutral and live surged together...

    Because if your neutral and live surged together to say 500V, there would be no relative difference and so no suppression.
  5. The diagram was just to show what you would lose...

    The diagram was just to show what you would lose by not having a ground connection for single phase (why the interest in 3 phase?)

    A remote switch is just one more thing to maintain, lose, break.
  6. A surge protector, although not all of it will be...

    A surge protector, although not all of it will be functional due to no ground; for brownouts a voltage regulator, although the supply itself should be fine if it can cover 110V to 220V without a...
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    Voltmeter on the CMOS battery? Is that an echo...

    Voltmeter on the CMOS battery?

    Is that an echo I hear?
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    I have some old CR2032 batteries 3.23V to...

    I have some old CR2032 batteries

    3.23V
    to
    3.32V

    so I'm not so sure about 3.09V; I had one such battery that had a good voltage but just could not take any load.


    Now I did have a computer...
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    Perhaps this is where a small by-pass capacitor...

    Perhaps this is where a small by-pass capacitor in parallel with the main smoothing capacitor might help.

    One might think a larger smoothing capacitor would help, but this would actually have the...
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    There are many things to worry about in life,...

    There are many things to worry about in life, this is not one of them; all is fine.
  11. And theory guides what data to collect Take...

    And theory guides what data to collect

    Take the example in this thread; had it not been hypothesized that a dark background saves a lot of power, data would not have been collected, and the data...
  12. Data does not go far without theory (and vice...

    Data does not go far without theory (and vice versa)
  13. Over 2000 posts... and finally a good idea! it...

    Over 2000 posts... and finally a good idea! it had to happen... eventually.
  14. A slight difference between black wallpaper and...

    A slight difference between black wallpaper and white, but certainly noticeable (1 W); thanks for taking the time to collect this data.

    The question now is what brightness does an average user...
  15. The old days of text terminals were dark...

    The old days of text terminals were dark background.
  16. No energy saved as the lights work just as hard...

    No energy saved as the lights work just as hard (the pixels let through or block light)

    Now it is possible dark mode has one turning the brightness up, in which case it would actually waste energy.
  17. If the wiring is only good for 10 Amp you can't...

    If the wiring is only good for 10 Amp you can't just move to 40 amp, 4 times the current has 16 times the heating; but you can go for a slow-blow circuit breaker (if the electrician says it is OK)
    ...
  18. Then lets estimate it Two 330F capacitors...

    Then lets estimate it

    Two 330F capacitors charged to say 350V

    I V Dt = 0.5 C V_c^2

    where

    I = 66.7 A
    V = 220 V
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    Did you check its voltage? How old is it?

    Did you check its voltage? How old is it?
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    I tend to take things a little too far sometimes...

    I tend to take things a little too far sometimes and treat contacts with silicone oil.

    Did you test for bad sectors on the hard drive, how is the SMART status? (HD tune)

    What did you use to...
  21. Horowitz and Hill is a tough place to start ...

    Horowitz and Hill is a tough place to start

    Practical Electronics for Inventors, Fourth Edition - Paul Scherz, Simon Monk

    is a lot cheaper, and the 3rd edition is just fine, which brings the...
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    Why does the noise suddenly kick in at 40% LOAD ...

    Why does the noise suddenly kick in at 40% LOAD

    never mind... that is audiable noise and I thought it was voltage noise.
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    * Check the CMOS battery * Check the UEFI/BIOS...

    * Check the CMOS battery

    * Check the UEFI/BIOS is up to date


    You already seem to have tried

    * Test the RAM (MemTest is free)

    * Test the hard drive
  24. I concede; I have been outwitted.

    I concede; I have been outwitted.
  25. I feel sure this is not the reason.

    I feel sure this is not the reason.
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