Corsair TX750M PSU Review

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Ripple Measurements

To learn how we measure ripple, please click here.

This table includes the ripple levels we measured on the TX750M's rails. The limits, according to the ATX specification, are 120mV (+12V) and 50mV (5V, 3.3V, and 5VSB).

Test12V5V3.3V5VSBPass/Fail
10% Load16.5mV5.3mV7.9mV4.3mVPass
20% Load23.2mV6.3mV8.7mV6.0mVPass
30% Load21.3mV9.0mV17.2mV7.2mVPass
40% Load22.2mV7.1mV11.1mV8.8mVPass
50% Load25.0mV7.3mV11.9mV13.1mVPass
60% Load29.1mV7.7mV12.4mV13.2mVPass
70% Load32.1mV8.8mV15.2mV14.7mVPass
80% Load36.5mV8.7mV15.2mV17.1mVPass
90% Load43.1mV10.0mV15.3mV19.8mVPass
100% Load49.4mV14.4mV19.9mV24.9mVPass
110% Load53.7mV14.7mV20.1mV26.4mVPass
Cross-Load 124.6mV9.4mV12.5mV10.3mVPass
Cross-Load 252.5mV16.6mV20.7mV25.5mVPass

  • Result 30 -22_Ripple_12V_Comparison
  • Result 31 -23_Ripple_5V_Comparison
  • Result 32 -24_Ripple_33V_Comparison
  • Result 33 -25_Ripple_5VSB_Comparison

Ripple suppression at +12V isn't particularly good given today's standards in this category. We'd like to see much lower values (less than 40mV), worst-case.

On the other hand, both minor rails perform significantly better than the +12V rail.

Ripple Oscilloscope Screenshots

The following oscilloscope screenshots illustrate the AC ripple and noise registered on the main rails (+12V, 5V, 3.3V and 5VSB). The bigger the fluctuations on the screen, the bigger the ripple/noise. We set 0.01 V/Div (each vertical division/box equals 0.01V) as the standard for all measurements.

Ripple At Full Load

  • 12v_full_load
  • 5v_full_load
  • 3v_full_load
  • 5VSB_full_load

Ripple At 110-Percent Load

  • 12v_110_load
  • 5v_110_load
  • 3v_110_load
  • 5VSB_110_load

Ripple At Cross-Load 1

  • 12v_cl1
  • 5v_cl1
  • 3v_cl1
  • 5vsb_cl1

Ripple At Cross-Load 2

  • 12v_cl2
  • 5v_cl2
  • 3v_cl2
  • 5vsb_cl2

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Corsair TX750M
$89.99Amazon

Previous Next
Summary
  1. Features & Specifications
  2. Packaging, Contents, Exterior & Cabling
  3. Teardown & Component Analysis
  4. Load Regulation, Hold-Up Time & Inrush Current
  5. Efficiency, Temperature & Noise
  6. Protection Features
  7. Cross-Load Tests & Infrared Images
  8. Transient Response Tests
  9. Ripple Measurements
  10. Performance, Value, Noise & Efficiency
  11. Final Analysis
About the author
Aris Mpitziopoulos

Aris Mpitziopoulos is a Contributing Editor at Tom's Hardware US, covering PSUs.

Read more
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6 comments
Comment from the forums
    Your comment
  • NinjaNerd56
    I have one of the 'sister' versions of this PSU. I like it a lot. My case is all air cooled, so I never hear the fan on the Corsair.
  • Dom_79
    So I guess this is a "re-release" of the TX-xxxM semi-modular line?

    https://www.newegg.ca/Product/Product.aspx?Item=N82E16817139030

    I have one of these ^ sitting in a box somewhere. Not that bad a unit but I hope they don't go through another "V2" fiasco with thise new line. If memory serves, the last time the issue was attributed to using a newer OEM manufacturer...

    Great review though! Very thorough and well presented :)
  • Nuckles_56
    Thanks for the review Aris, it looks like with a few tweaks, this platform could really kill it
  • mrmez
    Got a TX-750w 9 years ago.
    Still going great!
  • Dark Lord of Tech
    Any chance to review the new CX series released by Corsair recently. Not the M , but the non modular CX.
  • superninja12
    I needed this review , thank you :D
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