Welcome Stranger to OCC!Login | Register

Corsair TX750 V2 750W & TX850 V2 850W Power Supply Review

paulktreg    -   May 11, 2011
» Discuss this article (16)

Lowest Prices

Testing:

TX850V2

Efficiency and Power Factor:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Corsair TX850V2 Efficiency & Power Factor
Supply = 110VAC/50Hz
DC Load (W)
0
172
433
827
DC Load As A % Of Maximum
N/A
20
51
97
Efficiency
N/A
81
85
80
Power Factor (PF)
0.82
0.98
0.99
0.99

Whilst not quite meeting the 80 Plus Bronze standard following the OCC testing methodolgy the Corsair TX850V2 did manage a maximum efficiency of 85% at approximately 50% DC load. The power factor is well within the required level of 0.9 which is usually the case.

 

 

Corsair TX850V2 Efficiency & Power Factor
Supply = 230VAC/50Hz
DC Load (W)
0
170
434
823
DC Load As A % Of Maximum
N/A
20
51
97
Efficiency
N/A
81
86
83
Power Factor (PF)
0.42
0.94
0.97
0.98

The Corsair TX850V2 produced efficiency levels that are a touch higher when supplied from 230VAC with a maximum level of 86%. Power factor levels are typical of a power supply in this class and maintained above 0.9 once the power supply was loaded at 170W.

Whilst these figures aren't spectacular the TX850V2 produced a set of results that are on a par with other power supplies in this class following the OCC testing methodology.

 

AC Ripple On DC Outputs:

 

I have consistently found the AC ripple levels on the DC rails to be more or less equal with an 110VAC or 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 = 5mv/div, Timebase = 10uS/div

 

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

Oscilloscope settings: Amplitude = 5mv/div, Timebase = 10uS/div

 

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

Oscilloscope settings: Amplitude = 5mv/div, Timebase = 10uS/div

 

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

Oscilloscope settings: Amplitude = 5mv/div, Timebase = 10uS/div

 

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

Oscilloscope settings: Amplitude = 5mv/div, Timebase = 10uS/div

 

Corsair TX850V2 Power Supply AC Ripple/Noise
Supply = 230VAC/50Hz DC Loading = 795W
DC Rail
+3V3
+5V0
+12V
-12V0
+5VSB
ATX12 Max (mV p-p)
50
50
120
120
50
Ripple (mV p-p)
30
25
40
40
25
Pass/Fail
Pass
Pass
Pass
Pass
Pass

The TX850V2 produced a fairly average set of results in this section with the noise levels well within the requirements set down by the ATX12V V2.2 specification. A level of only 40mV on a heavily loaded +12V rail isn't too shoddy, is it? No real problems here so let's move on.




  1. Introduction & Closer Look
  2. Closer Look (The Power Supply)
  3. Specification & Features
  4. Testing the TX750V2: DC Voltage Load Regulation
  5. Testing the TX750V2: Efficiency, Power Factor & DC Quality
  6. Testing the TX750V2: Temperature, Noise Level & Fan Speed
  7. Testing the TX850V2: DC Voltage Load Regulation
  8. Testing the TX850V2: Efficiency, Power Factor & DC Quality
  9. Testing the TX850V2: Temperature, Noise Level & Fan Speed
  10. Conclusions
Random Pic
© 2001-2014 Overclockers Club ® Privacy Policy

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

Elapsed: 0.0393528938