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A Detailed Look Into PSUs

Discussion in 'Articles' started by crmaris, Apr 2, 2011.

  1. crmaris

    crmaris Reviewer

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    Last edited: Sep 9, 2011
    ELiTRiGG3R, LukcyYu, m1dg3t and 31 others say thanks.
  2. InnocentCriminal

    InnocentCriminal Resident Grammar Amender

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    Thank you!
     
  3. Ra97oR

    Ra97oR

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    Seriously a great read and very informative.
     
  4. v12dock

    v12dock

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    awesome article I look forward to reading it
     
  5. Andrea87

    Andrea87 New Member

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    Great reading. Thanks.
     
  6. PHaS3

    PHaS3

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    Awesome article... Very in depth and informative... Thank you :)
     
  7. theJesus

    theJesus

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    Very informative article. Now I know some more things to look for in choosing the "perfect" power-supply (whenever I actually have enough money to buy more stuff to need a new PSU for lol)

    BTW, I noticed some errors/typos on page 4:
    -The APFC subheading has different opening/closing tags (

    [/heading]
    -Second to last paragraph mentions PWM as "pulse mode modulation" but I think it's supposed to be "pulse width modulation"
    -Last paragraph has one instance of "MOFETs" instead of "MOSFETs"

     
  8. crmaris

    crmaris Reviewer

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    Thanks for pointing them. All fixed :)
     
  9. Mussels

    Mussels Moderprator Staff Member

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    great, this was badly needed
     
  10. Roph

    Roph

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    Just finished reading, that was an excellent job :)
     
  11. Mussels

    Mussels Moderprator Staff Member

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    i'm still reading it, most of it goes over my head.


    that said, its still an excellent reference source when i want to look up one part of a PSU. already found some interesting information in there

    for example
    i've ran into some weird PSU's that only powered on from cold boots, but ran stable when they did. from your information i can assume that something was up with that thermistor bypass relay.
     
  12. crmaris

    crmaris Reviewer

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    if you hear a clicking sound when the PSU starts then it's this relay. Almost all hi-end PSUs like Seasonic X series, Antec HCP etc. have one.
     
  13. Mussels

    Mussels Moderprator Staff Member

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    honestly never heard that before, but i havent listened for it either.
     
  14. countcristo

    countcristo New Member

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    this was awesome

    I feel more informed about modern power supply units than I did when my professor taught it. Thank you.
     
  15. Frick

    Frick Fishfaced Nincompoop

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    Thank you. Thank you again thank you. Super article, just what I needed. I understood this better than my swedish electronic books. :roll:
     
  16. hhumas

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    thanks for it................
     
  17. LukcyYu New Member

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    how2 hook a car-amp @home?

    Hello,

    Really interesting article.

    I have a question, what kind of PC PSU is the best for using with a car-audio amplifier @home? Well, I need ~70 amps in 12volts...

    Thank you for your answers!
     
  18. Mussels

    Mussels Moderprator Staff Member

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    you just answered your own question. if you need 70A, buy one with 70A on the 12V rail.
     
    dank1983man420 says thanks.
  19. newtekie1

    newtekie1 Semi-Retired Folder

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    I think a dedicated 12v supply would be a better option.

    Mean Well probably makes something that will fit your needs.
     
    Crunching for Team TPU 50 Million points folded for TPU
  20. ahantu New Member

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    Great article ..thanks for sharing....
     
  21. (FIH) The Don

    (FIH) The Don

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    imho you are one of the best psu reviewers out there, keep up the good work :)
     
  22. LukcyYu New Member

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    Hello everybody,

    Completely strange things happens to me last week. And all this is about my PSU...

    Long time ago, in the deep Internets of 2007 I found and ordered the HIPER "HPU-4S435", new one, not used.

    All these days we made a good team, playing such hits as Orange Box and Deep Space. Well, everything was pretty nice but last week: my PSU begun to "smoke"... It works fine, but it smells Horribly BURNED (!) I disassembled it and well, I am able to localize the source of the toxic smells, but I am unable to identify the element neither his function and the reason of his malfunction:

    IMG_20131214_210409 - Copy big.jpg IMG_20131214_210522 - Copy.jpg IMG_20131214_210444 - Copy.jpg IMG_20131214_210421 - Copy.jpg IMG_20131214_210409 - Copy.jpg

    The PC config was all time the same without modifs or overclock, the PSU was bought new.

    "I pay taxes and go to church, WHY is this happening to me?"

    Please somebody clarify the situation...

    {The config: Asus M2A-VM, Athlon 64 X2, 2GB DDRII800, ASUS Radeon X1950PRO 256MB and THE Subject's PSU}

    Thanks for any help! :)
     
  23. Mussels

    Mussels Moderprator Staff Member

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    hiper PSU's are well known as terrible quality, cheap units. you're lucky your PC wasn't completely destroyed.

    Replace it with a better unit, don't waste your time trying to repair it.

    thanks for the awesome pictures!
     
  24. crmaris

    crmaris Reviewer

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    The APFC choke smoked and as much as I can figure from your shots some Y caps also may have been damaged. Don't trust it at all, just throw it away and buy a new one.
     

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