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Thread: Power level I need -- advices pls!

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    Question Power level I need -- advices pls!

    Hello,

    Would you please tell me what is the MINIMUM amount of power I need to use a PC for gaming with these peripherials safely:

    ASRock FM2A85X mobo
    AMD A10 5800K APU
    2x4 GB ram on 1866 MHz
    Sapphire Radeon HD 7850 1 Gb
    DVD-writer sata
    HDD sata


    I've read the Sapphire website and the recommend a 650W PSU to use this video card in a standard PC , though I feel its above the safe amount of power I need here. Can a 450W or 550W handle this setup?

    Also I'm looking at Corsair / Seasonic / Antec brands mainly at around 50-90 USD price window.

    Thanks for any suggestion.

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    Default That'll pull something like 220W peak, so a 400W PSU is fine.

    The video card tops out at 100W under FurMark, and the motherboard will pull about 120W, even with more drives than you have, so you've got tons of headroom.

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    Vox (03-29-2013)

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    Default

    Seasonic G-series 360W is a solid choice.

    But why use a APU with HD7850? The integraded graphics controller in the APU is useless with a HD7850.

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    Default

    the motherboard will pull about 120W,
    Actually, don't those numbers include iGPU's consumption, which would be disabled with 7850?

    That kind of seconds the pointlessness of a combination. At the very least go for FM2 Athlon X4, or maybe consider switch to socket 1155, which would be even more frugal.

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    Default

    Quote Originally Posted by -The_Mask- View Post
    Seasonic G-series 360W is a solid choice.

    But why use a APU with HD7850? The integraded graphics controller in the APU is useless with a HD7850.
    Well, actually I've bought the APU first, after that I just realized that IGP is not enough for my needs so I've picked up a HD 7850, and disabled the IGP.

    Seasonic G-series 360W is a solid choice.
    So you say I don't need even a 400W PSU? Thats a great news !

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    Default

    Here's a good PSU calculator for individualized systems, even with overclock levels:
    http://www.overclock.net/t/1140534/p...-final-release

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    Default

    Oh, and I forgot one thing: The hall where I use this computer is somewhat dusty and I can't use a closed case and filtering out the dust at case fans. So would you recommend any PSU that actually loves the dust please. (or hates it less)

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    I'm not sure there's such a thing as a dust-loving PSU. You may have to use compressed air to clean it out periodically (blowing at exposed areas).

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    Quote Originally Posted by Vox View Post
    Well, actually I've bought the APU first, after that I just realized that IGP is not enough for my needs so I've picked up a HD 7850, and disabled the IGP.


    So you say I don't need even a 400W PSU? Thats a great news !
    Well, as estimated before, with IGP disabled, your power draw should max out somewhere at 200W DC. So certainly G-360 is enough.

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    Default

    Good to hear, thanks!

    However, my location in Europe handicapping me all the time, so I can get only a few models in this power bracket from the local store:

    - Corsair VS450 (CP-9020049-EU)
    - Corsair CX430 (CMPSU-430CXEU)
    - Corsair CX430 (CMPSU-430CXV2EU)

    - Seasonic S12 II 380W
    - Seasonic SS-400ET
    - Seasonic S12 II 430W

    - Antec VP450P

    I'm kinda confused with Corsair because I heard they use sometimes low-quality materials in some of their series but don't know which ones. After all, I really don't know which one of the above should I buy.

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