Welcome Stranger to OCC!Login | Register

Corsair TX550M & TX750M Power Supply Review

paulktreg    -   February 21, 2012
» Discuss this article (3)

Lowest Prices

Testing:

TX550M - AC Ripple on DC Outputs:

I have consistently found the AC ripple levels on the DC rails to be more or less equal between an 110VAC and 230VAC mains supply. The results given below are for 230VAC only, but I will continue to check the levels at 110VAC during testing and publish them below if there are any significant differences.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AC ripple/noise on the +3V3 rail at 230VAC

Oscilloscope settings: Amplitude = 10mV/div, Timebase = 20mS/div

 

AC ripple/noise on the +5V0 rail at 230VAC

Oscilloscope settings: Amplitude = 10mV/div, Timebase = 20mS/div

 

AC ripple/noise on the +12V rail at 230VAC

Oscilloscope settings: Amplitude = 10mV/div, Timebase = 20mS/div

 

AC ripple/noise on the -12V rail at 230VAC

Oscilloscope settings: Amplitude = 10mV/div, Timebase = 20mS/div

 

AC ripple/noise on the +5VSB rail at 230VAC

Oscilloscope settings: Amplitude = 10mV/div, Timebase = 20mS/div

 

Corsair TX550M 550W (CMPSU-550TXM) AC Ripple/Noise
Supply = 230VAC/50Hz DC Loading = 525W
DC Rail
+3V3
+5V0
+12V
-12V0
+5VSB
ATX12 Max (mV p-p)
50
50
120
120
50
Ripple (mV p-p)
38
46
47
95
45
Pass/Fail
Pass
Pass
Pass
Pass
Pass

 

The results in this section are marginal, but still maintained within the limits set down by the ATX12V V2.2 specification – a pass for the TX550M in this section, but only just.

 

TX750M - AC Ripple On DC Outputs:

 

I have consistently found the AC ripple levels on the DC rails to be more or less equal between an 110VAC and 230VAC mains supply. The results given below are for 230VAC only, but I will continue to check the levels at 110VAC during testing and publish them below if there are any significant differences.

 

AC ripple/noise on the +3V3 rail at 230VAC

Oscilloscope settings: Amplitude = 10mV/div, Timebase = 20mS/div

 

AC ripple/noise on the +5V0 rail at 230VAC

Oscilloscope settings: Amplitude = 10mV/div, Timebase = 20mS/div

 

AC ripple/noise on the +12V rail at 230VAC

Oscilloscope settings: Amplitude = 10mV/div, Timebase = 20mS/div

 

AC ripple/noise on the -12V rail at 230VAC

Oscilloscope settings: Amplitude = 10mV/div, Timebase = 20mS/div

 

AC ripple/noise on the +5VSB rail at 230VAC

Oscilloscope settings: Amplitude = 10mV/div, Timebase = 20mS/div

 

Corsair TX750M 750W (CMPSU-750TXM) AC Ripple/Noise
Supply = 230VAC/50Hz DC Loading = 717W
DC Rail
+3V3
+5V0
+12V
-12V0
+5VSB
ATX12 Max (mV p-p)
50
50
120
120
50
Ripple (mV p-p)
49
45
94
95
44
Pass/Fail
Pass
Pass
Pass
Pass
Pass

 

The results in this section are marginal but still maintained within the limits set down by the ATX12V V2.2 specification – a pass for the TX750M as well, but only just.




  1. Introduction & Closer Look
  2. Closer Look (The Power Supply)
  3. Specification & Features
  4. Testing: DC Voltage Load Regulation
  5. Testing: DC Voltage Load Regulation (Cont.)
  6. Testing: Efficiency, Power Factor
  7. Testing: DC Quality
  8. Testing: Temperature, Noise Level & Fan Speed
  9. Conclusion: TX550M
  10. Conclusion: TX750M
Random Pic
© 2001-2014 Overclockers Club ® Privacy Policy

Also part of our network: TalkAndroid, Android Forum, iPhone Informer, Neoseeker, and Used Audio Classifieds

Elapsed: 0.0251481533