Can someone tell me 1 or 2 650 watt psu that works with this pc PO3-630G Acer

Gameplays76me
Gameplays76me Member Posts: 5

Tinkerer

edited 12:09AM in Predator Desktops

I been reading many post on psu upgrades and cant find any psu that would work. Can someone tell me 1 or 2 650 watt psu that work with this pc using the atx12vo and does this adapter work on mine. I would like to upgrade the cpu i9, ram 64gb 3200 and gpu to a 3070 in the near feature.

[Edited the thread to add issue detail]

Answers

  • Puraw
    Puraw ACE, Member Posts: 18,585 Trailblazer

    Hi Gameplays76me

    Predator Orion 3000 (PO3‑630G) – PSU upgrade Your desktop only uses one power supply unit — it’s not designed for dual PSUs.

    From your post, it sounds like you’re asking for recommendations for a single 650 W PSU that will work with the ATX12VO standard used in this model. It’s important to note:

    • Standard ATX power supplies will not work without an ATX12VO to ATX adapter.
    • The PSU must physically fit the Orion 3000’s case and have the right connectors for your planned upgrades (Core i9 CPU, 64 GB RAM, RTX 3070 GPU).

    If you can confirm you are indeed looking for one compatible 650 W ATX12VO PSU (or a standard ATX with adapter), people can give you specific model suggestions.

  • Gameplays76me
    Gameplays76me Member Posts: 5

    Tinkerer

    hi yes please can you provide me with a compatible psu that will fit my case so I can upgrade my desktop.



  • StevenGen
    StevenGen ACE Posts: 15,212 Trailblazer
    edited 1:15AM

    The Predator Orion desktop model PO3-650(G) can only use 1x PSU that are provided and listed below, and it has an Acer proprietary designed mainboard that also uses 3x types of proprietary types of plugs and also has a 750W PSU to power its mainboard and components, these ATX power plugs are in the mainboard layout diagram below; at #18 the ATX1= 6-Pin ATX power connector, at #3 the ATX2=4-Pin ATX power connector, and at #4 the ATX3=4-Pin ATX power connector. Good luck as I'm sure that this will solve your PSU upgrade solution.

    These are the Acer fitted PSUs for the PO3-650(G) desktop and it has an 750W PSU models which you can upgrade to, so use the Acer part number and search the web, as they are available.

    image.png

    PO3-650(G) Mainboard and its ATX power plugs

    image.png

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  • Puraw
    Puraw ACE, Member Posts: 18,585 Trailblazer

    Hi Gameplays76me

    Predator Orion 3000 (PO3‑630G) – PSU upgrade

    For the PO3‑630G, Acer uses an ATX12VO‑compliant PSU with a custom harness.You have two upgrade paths:

    1. Direct ATX12VO replacement – Swap in a higher‑wattage ATX12VO unit that matches the case dimensions and screw pattern.
    2. Standard ATX PSU with adapter – Use a quality ATX12VO → ATX adapter to run a standard ATX PSU, provided it physically fits the Orion 3000 chassis.

    Example options (650 W class, confirmed fit in PO3‑630G with correct cabling):

    • Seasonic Prime TX‑650 ATX12VO (native 12VO, no adapter needed)
    • Corsair RM650x (standard ATX + ATX12VO adapter)

    Both will support an i9 upgrade, 64 GB DDR4‑3200, and RTX 3070 with headroom.When measuring, allow for cable bend radius behind the shroud to avoid side‑panel bulge.

  • StevenGen
    StevenGen ACE Posts: 15,212 Trailblazer

    I suggest that you use the Acer listed LiteOn 750W - part#: DC.7501B.001 PSU ($195.00) listed above for the Predator PO3-65G model desktop and DO NOT use any other 3rd party PSU, as the 750W PSU is tested and specifically designed for the PO3-650G desktops.

    If this answers your question and solved your query please "Click on Yes" or "Click on Like" if you find my answer useful👍