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Thread: Which PSU from these 4?

  1. #1
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    Default Which PSU from these 4?

    Hello, I was hoping you all could help me come to a decision, but first things first:

    CPU: i5 4670K
    MB: Asus Sabertooth Z87
    RAM: 16GB G-Skill 1600Mhz Trident-X
    CPU Cooler: Noctua NH-U12S
    Case: Cooler Master HAF X
    SSD: Samsung 840 EVO 240GB
    HDD: WD Caviar Black 1TB
    Sound Card: Asus Xonar DX
    Graphics Card: GTX 680/GTX 770 (haven't decided yet)
    Extra Case Fans: Cooler Master Megaflow RED 200 x 3, Noctua 140mm x 1

    I'm sorry if I overdid it with the specs, but better to be safe than sorry!

    So I really have 2 questions, the first one being: Is 750W enough?

    I spent a solid day looking at PSUs (mostly from reviews here at jonnyGURU), and brought my options down to 2:

    Silverstone Strider Plus 750W http://www.silverstonetek.com/product.php?pid=240

    Antec High Current Gamer 750W (either modular or non-modular, they seem a bit different specced) http://www.antec.com/product.php?id=705200&fid=5022035 http://www.antec.com/product.php?id=706266&fid=5022035

    Now, if 750W is enough, can you please recommend/give your opinion about which one of those 2 is better?

    If 750W isn't enough, let me know, and I'll post some larger PSUs

    Many thanks in advance!
    Last edited by alza6991; 09-14-2013 at 07:52 PM. Reason: Remaining 2 PSUs had better reviews
    - alza

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    Default

    yeah, you forgot the option;

    Is 750 watt too much? If so, what is the optimal size for this rig?

    Answer:

    Yes. 450 watt to 550 watt.

    500 to 650 if you have limited options in your shopping region.

    There must be some options in this range.

    look for

    SeaSonic G Series SSR-550RM 550W

    By stepping down you increase the efficiency, and allow yourself to get a better grade for the same price as a 750 you don't need.

    win, win.

    Only consider 750 if it is on sale or a price as good as or cheaper than the 500-650.

    for example:

    http://www.newegg.com/Product/Produc...82E16817250007

    HighPower Astro GD 750W, Digital, 80+ Gold

    on sale for less than their 600 watt model. (good choice because it has excellent low wattage efficiency...but not the case with the older 750 watt bronze models you have listed.)
    Last edited by mdk777; 09-14-2013 at 10:23 AM.

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    Default

    According to this,
    http://www.jonnyguru.com/modules.php...ion&ndfaq_id=3

    isn't it saying that a larger PSU will be more efficient and quieter?

    The Silverstone seemed to get a really good review here at jonnyGURU http://www.jonnyguru.com/modules.php...tory5&reid=183

    That being said, the Seasonic G Series 650W GOLD is available for the same price as the others, and with excellent reviews,
    http://www.jonnyguru.com/modules.php...tory6&reid=348

    but I was worried, because newer graphics cards (eg GTX 690) are recommending at least 650W, and I don't want to have to replace my PSU next time I upgrade the GPU.

    so if you think 650W will truly be enough, I guess i'll go with that.
    - alza

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    Default

    The only reason for the 650W recommendation by the GPU manufacturer is to help compensate for liar-labelled junk 650 Watters, which can't do more than 300W in reality.

    Read http://www.guru3d.com/articles_pages..._review,9.html
    and
    http://www.guru3d.com/articles_pages..._review,8.html

    A fully built core i7 PC drew only 307W with the GTX680 and 400W with a GTX690, and that was with the GPUs maxed out. These days, GPUs are actually getting more efficient, not less, so 550W will be enough for any single GPU set up both now and for the foreseeable future.

    PSU's are generally at their most efficient at or slightly above 50% load, so a 550W be more efficient on your PC than a 650 or 750 Watter, because it's being run at that ideal load level. The article was basically saying that a more efficient and better designed 800 Watter would be more efficient than a fully loaded 500 Watter (hence the reason he said "In some cases")

    All things considered, I too would recommend a Seasonic G-550

    EDIT: It looks like you're also from Australia.

    The Seasonic G-550 is cheaper than the HCG-750 and strider plus 750 (http://www.pccasegear.com/index.php?...ducts_id=21502), but the Antec HCG-520 (http://www.pccasegear.com/index.php?...ducts_id=15135) would also do you. It's a re-badged Seasonic S12II 520W, and it is considerably cheaper than the G-550 (albeit less efficient, being 80plus Bronze as opposed to Gold)
    No wonder it doesn't work! You installed the coils backwards

    Main PC: Core i7 3770K 3.5GHz, Gigabyte GA-Z77M-D3H-MVP, 8GB Kingston HyperX DDR3 1600, 240GB Intel 335 Series SSD, 750GB WD HDD, Sony Optiarc DVD RW, Palit nVidia GTX660 Ti, CoolerMaster N200 Case, Delta DPS-600MB 600W PSU, Hauppauge TV Tuner, Windows 7 Home Premium.

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    Default

    Thanks for the reply c_hegge

    So my only real question left is, will I bet at any real disadvantage going for the G-650 http://www.pccasegear.com/index.php?...ducts_id=21503

    as opposed to the G-550 you linked? http://www.pccasegear.com/index.php?...ducts_id=21502

    I don't mind paying the $30 extra, and am just thinking it might run a little quieter being at a bit less of a load (and leaving me room for overclocking the CPU later on, if I want to)?
    - alza

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    Default

    It is pretty simple...single monster GPU top out at 250 watts.
    With OC CPU and system add 200 more watts

    =450 watts.

    OC top end system to the extreme = ???

    So, simple answer is that 550 is plenty, but if you want to OC to the extreme... 650 watt is not overkill.

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    Default

    There's no real disadvantage in using the 650 Watter. It's just that you don't have to. If $30 doesn't mean much to you, then go for it.
    No wonder it doesn't work! You installed the coils backwards

    Main PC: Core i7 3770K 3.5GHz, Gigabyte GA-Z77M-D3H-MVP, 8GB Kingston HyperX DDR3 1600, 240GB Intel 335 Series SSD, 750GB WD HDD, Sony Optiarc DVD RW, Palit nVidia GTX660 Ti, CoolerMaster N200 Case, Delta DPS-600MB 600W PSU, Hauppauge TV Tuner, Windows 7 Home Premium.

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