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Thread: Can you help me choose between these PSUs for my girlfriend?

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    Default Can you help me choose between these PSUs for my girlfriend?

    G'day folks. Can I get some opinions on these PSUs from the pros here?

    I need a 650W minimum PSU for my girlfriend's build here: https://uk.pcpartpicker.com/user/tabikaeru/saved/bkGMvK

    It's basically a toss up between these PSUs (in order of price):

    Seasonic FOCUS PX-650 Platinum (135 euros) 10 year warranty
    Corsair RM650x 650W Gold (119 euros) 7 year warranty
    Fractal ION+ 660W Platinum (114 euros) 10 year warranty
    EVGA SuperNOVA 650 G3 Gold (112 euros) 7 year warranty
    SilentiumPC Supremo FM2 650 W 80+ Gold (81 euros) 5 year warranty. Unfortunately the 750W for only 10 euros more seems out of stock here

    Most important factors are:

    • Stability
    • Warranty
    • Noise


    The machine will be spent doing mostly web work, so efficiency would be nice too but it's not mega important.

    Can I get some opinions?

    P.S. Quick note. I have hundreds of PSU cables of all sorts lying around so cable types or quantity don't matter with each model. Connection quantity does matter but she'll only be using 1 GPU.
    Last edited by whyaudiowhy; 2 Weeks Ago at 07:13 AM.

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    Corsair RM650x and FD ION+ 660P win in stability, noise and warranty. RM650x has 10 year warranty, not 7.
    All other PSUs are either less stable, lesser quality, or noisy.

    Quote Originally Posted by whyaudiowhy View Post
    P.S. Quick note. I have hundreds of PSU cables of all sorts lying around so cable types or quantity don't matter with each model.
    That's a quick way to (at the very very worst) fry your hardware - modular power supply cables are not interchangeable between brands and not even between different models of the same brand, unless the specific brand made special effort to standardize their sockets.

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    Quote Originally Posted by Orion View Post
    That's a quick way to (at the very very worst) fry your hardware - modular power supply cables are not interchangeable between brands and not even between different models of the same brand, unless the specific brand made special effort to standardize their sockets.
    Oh wow. I literally had no idea what-so-ever. I guess I've got hundreds of cables from past builds to throw away then?
    Crikey, I'll have to also make sure I didn't mix of the spares up between the older ones for my current 2 PCs...

    That's really surprising because I read so many reports from people who didn't like the cables their PSU came with, so they bought others in different colours/rigidity etc. and I haven't even ever heard of this being a problem.

    Also does the Corsair really have a 10 year warranty? It literally says 7 years right on that link to their website in the OP.

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    Quote Originally Posted by whyaudiowhy View Post
    Also does the Corsair really have a 10 year warranty? It literally says 7 years right on that link to their website in the OP.
    Yes, it's 10 year warranty. It only used to have 7 year warranty for the first year or so. Here's what I see:

    Quote Originally Posted by whyaudiowhy View Post
    Corsair RM650x 650W Gold (119 euros) 7 year warranty

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    Quote Originally Posted by whyaudiowhy View Post
    That's really surprising because I read so many reports from people who didn't like the cables their PSU came with, so they bought others in different colours/rigidity etc. and I haven't even ever heard of this being a problem.
    That's entirely possible if you get right cables, Corsair Type 4 pinout in the case of Corsair RMx, but general rule is that you don't blindly plug in modular cables from one PSU into another even if they fit. Heck, on some PSUs even cables for different connectors may fit but not be electrically compatible.

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    Thanks for all the replies. I went with the 760W version of the Fractal ION+ Platinum.

    The main reasons were:

    1. It's available in a store really close by
    2. The cables are apparently VERY flexible and my girlfriend's case (haven't got it yet) has been reviewed to be very difficult to route rigid cables in
    3. It's apparently almost totally silent and only runs at 800rpm at 80% full load, where the fan doesn't even run until it starts using at least 300W and even then it only ramps up to about 300rpm
    4. It's Platinum certified
    5. The price was right at 134

    The estimated power draw of my girlfriend's PC is around 400W at full load even under pretty heavy OC. So in most cases it will be using roughly 50% of the PSU's capacity. This means it should remain very efficient. I would have shelled out another 12 for the 860W version again just for headroom, lower heat generated by the PSU and more efficiency but it was sold out everywhere in my country until estimated end of July.

    Thanks again for your replies. I learned some very valuable information.

    I'll be back in a few weeks to give my general impressions of the device after some time using it.

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    Quote Originally Posted by Juular View Post
    That's entirely possible if you get right cables, Corsair Type 4 pinout in the case of Corsair RMx, but general rule is that you don't blindly plug in modular cables from one PSU into another even if they fit. Heck, on some PSUs even cables for different connectors may fit but not be electrically compatible.
    Does anyone have a matrix showing plug types and pin mapping for modular PSUs?

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    Quote Originally Posted by gdjacobs View Post
    Does anyone have a matrix showing plug types and pin mapping for modular PSUs?
    Jon have went out of his way to make one for Corsair and some CWT / Seasonic PSUs (since they use the same platforms), don't expect to find anything like that for other brands tho.
    http://www.jonnyguru.com/forums/show...ty-and-pinouts

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    Quote Originally Posted by whyaudiowhy View Post
    P.S. Quick note. I have hundreds of PSU cables of all sorts lying around so cable types or quantity don't matter with each model. Connection quantity does matter but she'll only be using 1 GPU.
    Quote Originally Posted by gdjacobs View Post
    Does anyone have a matrix showing plug types and pin mapping for modular PSUs?

    Check the connections for the cable you want to use and rearrange the pins if necessary to match the original.
    Last edited by ashiekh; 2 Weeks Ago at 01:47 PM.

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    Quote Originally Posted by ashiekh View Post
    Check the connections for the cable you want to use and rearrange the pins if necessary to match the original.
    Use a meter that shows 12v/5v/3.3v/0v coming from the PSU.
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