Deepcool DQ750 Quanta Semi-Modular Power Supply Review

by - 6 years ago

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Fan Speed


When testing in a power supply laboratory it is difficult to take fan noise readings as the noise from the Sunmoon test equipment and air conditioning corrupts everything. The next best thing in our circumstances was reading off the fan speed with a tachometer to get an idea for the noise. The ambient temperature during testing held constant at 22 degrees, with 1 degree of variation. Each power supply had a consistent time period of 5 minutes to stabilise between each load scenario. 

In my experience the following general relationships apply between noise levels and fan speeds, though it can vary greatly between the type of fan used.

  • Below 800 RPM – Inaudible/Silent
  • 800 to 1000 RPM – Barely audible
  • 1000 – 1200 RPM – Audible but still quiet
  • 1200 – 1400 RPM – Moderately noisy
  • 1400 – 1800 RPM – Noisy
  • 1800 RPM or higher – Intolerable

deepcool_dq750_fan

Fan speed is strong thanks to the high quality Yate Loon fan used. Only at 100% is the PSU noticeably audible, sub 100% and we find the noise is very subdued and perfect for any silence loving PC user.

Article Index

  1. Introduction and Packaging
  2. A Closer Look - Exterior
  3. A Closer Look - Interior
  4. Test Procedure
  5. Efficiency, PFC and Voltage Regulation
  6. Ripple Testing
  7. OPP and Max Wattage
  8. Fan Speed
  9. Final Thoughts
  10. View All

Author Bio

Add a Comment

1 Comment on Deepcool DQ750 Quanta Semi-Modular Power Supply Review

  • Avatar Rio Amaterasu says:

    i
    want an honest review on this one.. no BS no marketing all real.. coz
    i’m planning on buying one of these but since other rated this as
    “china made” i’m kinda having doubts.. Please reply anyone? eTeknix.com

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