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Thread: Delta DPS-300AB-73B Teardown - Just how bare bones is a PSU from a HP Gaming PC???

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    Quote Originally Posted by Orion View Post
    This unit doesn't have passive PFC - it doesn't have PFC at all.

    Nothing on the label says they can supply 28A combined. We don't know the output capacity of the 12V source in this PSU, and the declared OCP limits on each rail are unrelated to it.
    Correct. This PSU does NOT put out 28A on the +12V rail. You don't just add up the rails and come up with a total. That's not how it works.

    Quote Originally Posted by Orion View Post
    3 years isn't a really long time for a PSU, but still it looks pretty clean inside to me.
    I'm starting to question that this thing is only 3 years old. It doesn't have PFC. Pretty sure that hasn't been "legal" for some time.
    Last edited by Jon Gerow; 05-28-2020 at 03:15 PM.

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    oh ok.

    Well, When i had the motherboard it reported the system model to the system as "HP Pavilion 570-P017C Z5M32AAR#ABA"
    Oddly enough when i google that info it comes back with the same model pavillian but an i5 7400 and R7 gfx with a measly 180w PSU but mine had G4600 and 1050ti and the 300w PSU.

    The system cant physically be much older than that given the hardware which is odd.

    I will contact my friend who still has the case to see if he can dig any more info up on it like a more specific model numer

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    Update, the rear of the chassis says the same model number.

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    Quote Originally Posted by RyzenMaster View Post
    Update, the rear of the chassis says the same model number.

    Yeah. I guess both HP and Delta have hit all time lows when it comes to quality. *shrug*

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    Quote Originally Posted by Jon Gerow View Post
    I'm starting to question that this thing is only 3 years old. It doesn't have PFC. Pretty sure that hasn't been "legal" for some time.
    In EU PFC is required for any PSU >75W for >20 years. Both passive and active PFC meet the requirement, so it's the manufacturers choice which they prefer. For some other markets PFC is still not required as of today.

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    Quote Originally Posted by Philipus II View Post
    In EU PFC is required for any PSU >75W for >20 years. Both passive and active PFC meet the requirement, so it's the manufacturers choice which they prefer. For some other markets PFC is still not required as of today.
    Yeah. I think in the U.S. it's not "mandatory" like in the E.U., but you need it to be Energy Star compliant.
    Last edited by Jon Gerow; 05-28-2020 at 03:59 PM.

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    I am based in the USA and this unit was a USA market product.

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    Looking at the HP Pavilion 570 BIOS updates

    https://support.hp.com/us-en/drivers...eries/13823514

    suggests it is indeed only 3 years old; it also looks quite modern
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