Best option re my noisy SF600

Discussion in 'Power Supplies' started by tjh1989, Aug 12, 2017 at 5:23 PM.

  1. tjh1989

    tjh1989 n00bie

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    Hi all

    I've just finished an ncase m1 build (1800x + 1080ti) which uses the SF600 PSU. The system is very quiet (dual radiator build) apart from the damned PSU - this was a major oversight on my part. I'm quite frustrated that all my efforts to build a quiet PC have been undone by a noisy PSU!

    The PSU fan is never not spinning (even when the system is idle). Understandably the fan increases when you put the system under load but its pretty noisy and annoyingly it never seems to go back to the original speed even when the system is idle again (unless you reboot the PC). I understand that the SF600 fan is purely temperature dependent so it might be that I have a high case temp (due to the very small case) but I'm not sure.

    I was thinking about my options here:
    1. replace the PSU with the SF450 - I think this will cope with my system load( I'll be buying a power meter shortly) but will it be quieter? I've heard that it is but I'm not sure if this applies when the PSUs are under the same (450w) load.

    2. replace the fan on the PSU with a Noctua fan (as was done here: http://www.overclock.net/g/a/1553016/corsair-sf600-fan-replacement-with-92mm-noctua/). I'm a little nervous about opening a PSU but I think it should be ok as I'm just connecting a cable.

    Which (if any) option would you recommend? Are there any other options (quieter SFX PSU brands)?

    Any thoughts much appreciated!

    Tom
     
  2. daglesj

    daglesj [H]ardness Supreme

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    I had a Corsair 750W about 10 years ago that was pretty noisy. In the end I looked up a high airflow but lowest noise fan on a Quiet PC site and went about installing that instead.

    I removed the PSU after unplugging the PC and switching it on and off a few times and opened it up. The hardest part of the swap was the power connector for the fan was a small custom 4 pin so I had to swap/cut and heatshrink (cant remember exactly) that over. Once in place it worked fine. Had plenty of airflow and was much quieter. Took maybe half an hour to sort out. It ran fine for another 4-5 years before I sold it on.

    Cost was like £10?
     
    Last edited: Aug 12, 2017 at 6:37 PM
  3. tjh1989

    tjh1989 n00bie

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    Thanks, it seems that there is a specific connector you can buy in this case (https://www.moddiy.com/products/Fan...-2%2dPin-CB%2d32D-Connector-Female-(5cm).html) so hopefully that'll make things easier.
     
  4. daglesj

    daglesj [H]ardness Supreme

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    Yep that brings back memories. Yeah I remember now, instead of altering the fan I got a short motherboard to fan extension I had and cut that down to splice the mini plug from the old fan onto. That way I could easily reuse the fan!
     
  5. darrpara

    darrpara Limp Gawd

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    There is a thread with more fan replacement info here on [H] https://hardforum.com/threads/corsair-sf600-600w-sfx-powersupply.1864645/page-15