PSU Modding.. It is possible !

pavithra_uk

Well-known member
  • Oct 6, 2009
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    I like to talk about Power Unit modding..

    I already done some modding and getting success all times..

    Anyone done it before ?
     

    nadman

    Well-known member
  • Nov 29, 2006
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    I have never heard of psu modding.I generally stay away from the psu cause if you open it up it will void the warranty.
    By the way I would like to see some of your work please post some pics of the mods you have done here.
     

    fallenzeraphine

    Active member
  • Jan 29, 2008
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    Anything can be modded, on PSU's most of the time the things that should be modded are the capacitors, most low budget ones contain sub par caps, you can replace them with good caps from manufacturers like Rubycon, Nichicon, Nippon Chemicon, Panasonic, Elna, Sanyo etc, Modding capacity of a PSU is vast, only limited by your imagination.
     

    pavithra_uk

    Well-known member
  • Oct 6, 2009
    53,434
    22,083
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    Gotland
    Anything can be modded, on PSU's most of the time the things that should be modded are the capacitors, most low budget ones contain sub par caps, you can replace them with good caps from manufacturers like Rubycon, Nichicon, Nippon Chemicon, Panasonic, Elna, Sanyo etc, Modding capacity of a PSU is vast, only limited by your imagination.

    yah, I also modding caps. but there are many others to modd.
     

    pavithra_uk

    Well-known member
  • Oct 6, 2009
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    Here my PSU MODD

    Replaced low quality capacitors (output stage) with high quality low ESR, high capacity capacitors
    Also replaced Input dc line capacitors with high quality two caps
    Added input EMI/RFI noise filter
    Added AC surge protection (3 MOVs)
    Added AC PFC coil
    Added more X,Y capacitors for better noise attunation.
    Replaced 4 (2A 500V) recifiers with bridge rec. (5A)
    Replaced heaksink with large thik one.
    Replaced +12V Skottkey diode with 30A 45V high power skottkey diode. and +3.3V , +5V
    Added Series inductors for +12V, +5V, +3.3V lines
    replaced old fan with high quality one + Speed limit
    230V/110V swith now used for FAN speed control - Low/High
    Old PSU cover removed, use another cover with lot of went holes.
    Adding new CAP,Diode for +5V SB line.


    Results:

    +12V, +5V, +3.3V rails are now more stable in variuos load conditions.
    Restarts in brown-out stages are stopped (thanks to large 2 filter capacitors)
    protected from lightning (surges)
    PSU running more cooler and quietly
    +5V SB line now hold up for 3 seconds.

    I will attach PICs soon.