Need help with PSU

Will a ATX PSU work on MicroATX motherboard
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  1. Yes! MicroATX is essentially an ATX board with the bottom few PCI slots cut off.

    Whilst on the topic, I must also recommend that if you're buying a new PSU, make it a good one. This is something that a lot of people overlook.
  2. Psu's are one of the things you want to buy more than you need, you never know when your gonna decide you want a new GPU, or add a second one. I'm gonna buy a Radeon 7850 soon, I could of bought a 550w but instead I ordered a 750w XFX Core Edition.
  3. mace200200 said:
    Psu's are one of the things you want to buy more than you need, you never know when your gonna decide you want a new GPU, or add a second one. I'm gonna buy a Radeon 7850 soon, I could of bought a 550w but instead I ordered a 750w XFX Core Edition.

    You could get a good quality 400W PSU for a system with a single HD 7850; it only requires a PSU with 28A on the 12V rail and one 75W 6-pin PCIe power connector. The Antec EA-380D is actually enough for a system with a single 7850. The XFX Core 550W with 44A on the 12V rail is sufficient for a system running two HD 7850s in Crossfire mode; a crossfire of 7850s requires a PSU with 38A on the 12v rails and two 75W PCIe power connectors. That 750W XFX is a great PSU made by Seasonic, but is WAY overkill for your system even if you planned on CF and some hardcore OC on the CPu and GPUs.

    Gikkz: As prezzle stated, yes you can use an ATX PSU on a micro ATX motherboard.
  4. Rugger said:
    You could get a good quality 400W PSU for a system with a single HD 7850; it only requires a PSU with 28A on the 12V rail and one 75W 6-pin PCIe power connector. The Antec EA-380D is actually enough for a system with a single 7850. The XFX Core 550W with 44A on the 12V rail is sufficient for a system running two HD 7850s in Crossfire mode; a crossfire of 7850s requires a PSU with 38A on the 12v rails and two 75W PCIe power connectors. That 750W XFX is a great PSU made by Seasonic, but is WAY overkill for your system even if you planned on CF and some hardcore OC on the CPu and GPUs.

    Gikkz: As prezzle stated, yes you can use an ATX PSU on a micro ATX motherboard.

    Thanks for that information, as I might get CF HD7850's in the future as well!
  5. Rugger said:
    You could get a good quality 400W PSU for a system with a single HD 7850; it only requires a PSU with 28A on the 12V rail and one 75W 6-pin PCIe power connector. The Antec EA-380D is actually enough for a system with a single 7850. The XFX Core 550W with 44A on the 12V rail is sufficient for a system running two HD 7850s in Crossfire mode; a crossfire of 7850s requires a PSU with 38A on the 12v rails and two 75W PCIe power connectors. That 750W XFX is a great PSU made by Seasonic, but is WAY overkill for your system even if you planned on CF and some hardcore OC on the CPu and GPUs.

    Gikkz: As prezzle stated, yes you can use an ATX PSU on a micro ATX motherboard.

    And I was afraid my XFX XXX Editions 650W isn't enough for HD 7850 CF... Guess I was wrong. :)
  6. You're both welcome!
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