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Antec Truepower Quattro 1200W Power Supply Review

paulktreg    -   April 25, 2010
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Testing :

Efficiency and Power Factor:

 

 

 

 

 

 

 

 

 

 

 

 

Antec Truepower Quattro 1200W Power Supply Power Factors & Efficiency
Supply = 110Vac/50Hz
DC Load (W)
AC Load (W)
PF
Efficiency (%)
Pass/Fail
0
25
0.92
N/A
N/A
214
266
0.99
80
Pass
638
755
0.99
84
Pass
1177
1424
1.00
83
Pass

 

Antec Truepower Quattro 1200W Power Supply Power Factors & Efficiency
Supply = 230Vac/50Hz
DC Load (W)
AC Load (W)
PF
Efficiency (%)
Pass/Fail
0
26
0.39
N/A
N/A
214
261
0.91
82
Pass
639
737
0.97
87
Pass
1173
1363
0.99
86
Pass

 

The Antec Truepower Quattro 1200W meets the efficiency levels set down by the ATX12V V2.2 specification with ease but following the OCC testing methodolgy the levels fall far short of the claimed 80 Plus Silver level claimed. Silver level requires efficiencies of 85%, 88%, 85% at 20%, 50% and 100% loading with a power factor level over 0.9. The power factors are fine but following the OCC testing methodology the TPQ-1200 qualifies for standard 80 Plus only. Efficiency is still pretty good but not as high as claimed.

 

AC Ripple On DC Outputs:

 

I have consistently found the AC ripple levels on the DC rails to be more or less equal with a 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 On +3V3 Rail at 230VAC

Oscilloscope settings: Amplitude = 10mv/div, Timebase = 2uS/div

 

AC Ripple On +5V0 Rail at 230VAC

Oscilloscope settings: Amplitude = 10mv/div, Timebase = 2uS/div

 

AC Ripple On +12V Rail at 230VAC

Oscilloscope settings: Amplitude = 20mv/div, Timebase = 2uS/div

 

AC Ripple On -12V Rail at 230VAC

Oscilloscope settings: Amplitude = 50mv/div, Timebase = 2uS/div

 

AC Ripple On +5VSB Rail at 230VAC

Oscilloscope settings: Amplitude = 30mv/div, Timebase = 2uS/div

 

Antec Truepower Quattro 1200W Power Supply AC Ripple/Noise
Supply = 230Vac/50Hz, DC Loading = 1173W
DC Rail
+3V3
+5V0
+12V
-12V0
+5VSB
ATX12 Max (mV p-p)
50
50
120
120
50
Ripple (mV p-p)
40
50
80
170
30
Pass/Fail
Pass
Pass
Pass
Fail
Pass

 

The noise/ripple levels on the Antec Truepower Quattro 1200W are a mixed bag. The main 3V3, 5V0 and 12V rails are within the ATX12V V2.2 specification limits, 5V0 just, and for a power supply shoving out nearly 1200W that's pretty good but the levels on the -12V rail are too high at 170mV. The -12V isn't used for much these days and the only use that springs to mind is the older RS232 family of serial ports, and they are seldom used these days so it shouldn't prove too much of a problem.




  1. Introduction & Closer Look
  2. Closer Look (The Power Supply)
  3. Specification & Features
  4. Testing: DC Voltage Load Regulation
  5. Testing: Efficiency, Power Factor & DC Quality
  6. Testing: Temperature, Noise Level & Fan Speed
  7. Conclusion
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