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  1. One over-voltage is all it takes to destroy a...

    One over-voltage is all it takes to destroy a capacitor




    Why?
  2. I don't know about you, but I leave my PC plugged...

    I don't know about you, but I leave my PC plugged in when I am away; the test (https://digilander.libero.it/hibone/UPS/PSU_and_UPS_Compatibility_Test_Report.pdf) was for "Power Supply OFF - 5Vsb...
  3. https://digilander.libero.it/hibone/UPS/PSU_and_UP...

    https://digilander.libero.it/hibone/UPS/PSU_and_UPS_Compatibility_Test_Report.pdf
    shows voltages up to 497V on the bulk capacitor

    Many PC power supplies have bulk capacitors rated for 400V while...
  4. Thread: Bathroom reno

    by ashiekh
    Replies
    4
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    54

    Still got a vent fan? and what stops water just...

    Still got a vent fan? and what stops water just flowing under the door?
  5. Replies
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    That is not what I meant; one picture seems to...

    That is not what I meant; one picture seems to show solid capacitors and the other electrolytic in the little enclosure next to the main transformer.
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    351

    Are the following pictures inconsistent?

    Are the following pictures inconsistent?
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    507

    Best price, efficiency, reliability, longevity,...

    Best price, efficiency, reliability, longevity, regulation, noise, ripple?

    1600W run 24/7 probably does not have price concerns given the cost of electricity, which would be over $1500 a year.
    ...
  8. Replies
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    Were the two lower left capacitors damaged during...

    Were the two lower left capacitors damaged during disassembly?
  9. Replies
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    119

    Actually I didn't want to give the video card guy...

    Actually I didn't want to give the video card guy the idea that he might have caused the damage, so I rephrased it in terms of power supplies, expecting to learn something new; and I did, that some...
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    I was thinking of the guy with the video card ...

    I was thinking of the guy with the video card

    http://www.jonnyguru.com/forums/showthread.php?17237-PSU-quot-starving-quot-GPU

    that if it were fed too low a voltage would the voltage regulator...
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    119

    I know there is over voltage and current...

    I know there is over voltage and current monitoring of the secondary side, but when was monitoring of the primary side introduced?
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    Running on undervoltage

    Just out of interest; what would happen if one ran a voltage regulator, in this case a power supply at under voltage, say 50V. Would it try its best and perhaps burn out the rectifying diodes due to...
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    With the new Chromium based Edge, Windows 10 just...

    With the new Chromium based Edge, Windows 10 just got even better (and I used to be a Mac guy).

    Before someone jumps in, I know, I know, the browser and OS are two different things...
  14. A burnt connector cuts power with associated...

    A burnt connector cuts power with associated hardware damage.. (the connector itself)
  15. Yes, since it is heat based, and it takes time...

    Yes, since it is heat based, and it takes time for the fuse to heat up.
  16. Would it not be enough to just have a self...

    Would it not be enough to just have a self healing fuse (PTC resistor) behind each connector?

    https://en.wikipedia.org/wiki/Resettable_fuse
    "
    These devices are often used in computer power...
  17. Bit like the person that puts a barrage of power...

    Bit like the person that puts a barrage of power strips on a single outlet; but it is still important that the single outlet is correctly fused and does not burn out.
  18. That is my point, the OCP is not properly...

    That is my point, the OCP is not properly engineered.
  19. One might have hoped that Over Current Protection...

    One might have hoped that Over Current Protection (OCP) had kicked in rather than 3 connectors fail on one unit.
  20. http://www.jonnyguru.com/forums/member.php?5727-Se...

    http://www.jonnyguru.com/forums/member.php?5727-Seasonic-Rep
  21. 'should work' is a little different from 'it may...

    'should work' is a little different from 'it may or may not work...'


    https://knowledge.seasonic.com/article/7-what-type-of-ups-does-seasonic-recommend

    "
    Seasonic recommends a UPS with a pure...
  22. A resistive load is too gentle a test in my...

    A resistive load is too gentle a test in my opinion, but if Seasonic says a non sine-wave UPS is OK, I'd tend to believe them.

    What says Corsair? At some point the Guru was going to test the...
  23. The main peak looks to be a bit over 300V which...

    The main peak looks to be a bit over 300V which is not bad given that a 240V sine-wave peaks at 340V
  24. Thread: Molex plugs

    by ashiekh
    Replies
    11
    Views
    281

    Ah, you mean the extension idea?

    Ah, you mean the extension idea?
  25. Thread: Molex plugs

    by ashiekh
    Replies
    11
    Views
    281

    Good point.

    Good point.
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