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Thread: Alpha branded PSU

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    Default Alpha branded PSU

    Hi everyone:

    I recently replaced the PSU in my Mom's machine with something you all kindly recommended in another thread.

    Now, the old PSU was something called an Alpha VT-420LD. Photos below.
    I'd like to give this old Alpha to a friend, if it's good enough for general use.
    His machine will be very low power.

    I can't find anything about the Alpha brand on the web. I believe the place that installed it told my Mom it was made by Fortron or Sparkle. Can't remember.

    Can anyone spot any damage/wear to this unit?

    At 4 years old, is it worth giving to a friend of mine? Quality of this brand/model, esp. the capacitors?

    Thanks in advance.
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    Default

    The rest of the photos...
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    Default

    It's junk, give it a proper burial. I see at least one bad cap. Capxon and Teapo's are never a good combination. At least older Teapo's. Teapo's aren't too bad in modern budget units and are seen frequently in decent models.

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    Default

    Quote Originally Posted by Hogwild View Post
    Hi everyone:

    I recently replaced the PSU in my Mom's machine with something you all kindly recommended in another thread.

    Now, the old PSU was something called an Alpha VT-420LD. Photos below.
    I'd like to give this old Alpha to a friend, if it's good enough for general use.
    His machine will be very low power.

    I can't find anything about the Alpha brand on the web. I believe the place that installed it told my Mom it was made by Fortron or Sparkle. Can't remember.

    Can anyone spot any damage/wear to this unit?

    At 4 years old, is it worth giving to a friend of mine? Quality of this brand/model, esp. the capacitors?

    Thanks in advance.
    This is a old old unit since it 3.3 V, 5 V, heavy unit, around the early Pentium 4 era. That being said, i can't find a UL RU (recognized component) listing for the file number.. maybe its too old? or its crappy counterfeit?

    Still it does make have decent input filter and has decent Teapo caps

    It looks like a De-tuned version of an old Thermaltake Xaser III 430 Watt PSU i had which was made by Sirfa. (But made by SPI or FSP? usually SPI PSU's have on their transformers a sticker on top starting with SPI)

    Its not the best but for a REALLY old like Socket A/462 era PC like early 2001's it should be fine, for a modern PC.... Not at all..

    I would keep it as a spare for a really old PC and not give it away just in case for safety.
    ....

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    Default

    While not exactly a fire hazard, this PSU is unfit for service in any kind of modern PC, as has already been said. The biggest reason is the design of the PSU - it was made for 5V-heavy use, and the fact that there is a single regulation coil responsible for all three main rails (3V3, 5V, 12V) means its crossload regulation would be atrocious. And it would be crossloaded almost all the time in a modern, 12V-heavy rig.

    Perhaps it could be used as a bench/lab PSU, but not much more than that.
    Careful what you wish for... You just might get it.

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    Quote Originally Posted by Cyrix View Post
    This is a old old unit since it 3.3 V, 5 V, heavy unit, around the early Pentium 4 era. That being said, i can't find a UL RU (recognized component) listing for the file number.. maybe its too old? or its crappy counterfeit?
    Fake UL.

    I wouldn't use this power supply for anything.

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    Default

    Quote Originally Posted by McSteel View Post
    Perhaps it could be used as a bench/lab PSU, but not much more than that.

    Who uses 20 pin anymore?

    But the power supply idea might be a good one
    http://dangerousprototypes.com/docs/ATX_Breakout_Board
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    Last edited by ashiekh; 12-18-2018 at 12:06 PM.

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    Quote Originally Posted by jonnyGURU View Post
    I wouldn't use this power supply for anything.
    Except featuring it in the "what definately not to buy" list/video

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    Default

    Quote Originally Posted by Hogwild View Post
    I'd like to give this old Alpha to a friend, if it's good enough for general use.
    You must really hate that friend to give him an almost 20 year old PSU.

    While it looks like it was decent - when it was made back in the late 90s/early 2000s.
    But by todays standards, its a totally useless garbage unit nobody should even think about using.

    The CapXon, Teapo and Su'scon Caps point a bit more towards Sirtec but that doesn't really matter much...


    PS:
    Why do people think that PSU, even 10 year old, are fine if they seem to work?
    Nobody can test them so you have to "believe" that the PSU is fine.
    While GPU and CPU you can test. And they usually don't destroy everything when they die...

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