this post was submitted on 06 Jul 2023
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[Watercooling] Replace Bykski DDC pump with EKWB DDC pump? (self.pcmasterrace)
submitted 1 year ago by Romeowns to c/pcmasterrace
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Gidday team,

I have inherited a watercooled rig from my late father-in-law and the Bykski "B-PMD3-COV" DDC pump on the 7000D distro plate is very rattly at 20% / 1800 RPM (as low as PWM will let it go via Gigabyte X570 BIOs).

I want to replace it with the EKWB EK-Loop DDC 4.2 PWM Motor as this is the only option I have available locally.

I hope that I'll be able to tune down the EKWB pump to below 1800 RPM so it'll be quieter / less rattly. The rig is used mostly for quiet office work and occasional gaming.

Can you please let me know your thoughts on:

  • Is this a realistic hope?
  • Is this a straightforward task?
  • Is there more I need to consider?

Thank you for your time.

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[–] Romeowns 2 points 1 year ago

Thank you for your feedback. I've read that the Bykski DDC pump is a "clone" of the Xylem / Laing DDC pump - so I was hopeful that the EKWB / Xylem / Liang DDC pump would mate to the Bykski disto plate.

I'm still very eager to hear from anyone who has replaced a Bykski DDC with a EKWB / Xylem / Liang DDC pump.

In the meantime I'll follow your advice (partially). I'll drain the loop and try disassembling the pump and cleaning it internally, as my father-in-law used to run the EK Solid / Matte CryoFuel coolant which may have gummed up the impeller and thrown off the balance.