Welcome Stranger to OCC!Login | Register

Antec High Current Gamer 620W Power Supply Review

paulktreg    -   January 24, 2012
» Discuss this article (20)

Lowest Prices

Testing:

Efficiency and Power Factor:

Efficiency is a measure of the ATX power supplies ability to minimize losses during the conversion of the AC mains voltage into multiple DC rails. It is a simple ratio of output power measured in watts over input power measured in watts expressed as a percentage. It has no affect whatsoever on the power supply’s ability to power a PC but with higher efficiency comes less heat and lower utility bills; it’s also “green” and friendlier to the environment which is the driving force behind the 80 Plus certification program.

Power factor is a strange beast that’s difficult to fully explain without the use of complex AC theory so let’s keep it simple. Power factor doesn’t have a unit of measurement it’s a simple number from 0 to 1 that is concerned with the way various loads consume power and the nearer to unity the better. It is closely linked to 80 Plus certification because low power factors imply wasted energy that the normal domestic consumer does not get charged for but the utility companies still have to generate.

Supply at 110VAC:

 

 

 

 

 

 

 

 

 

 

 

Antec High Current Gamer 620W (HCG-620) Efficiency & Power Factor
Supply = 110VAC/50Hz
DC Load (W)
0
142
310
612
DC Load As A Percent Of Max (%)
N/A
23
50
99
Efficiency (%)
N/A
83
84.5
78
Power Factor (PF)
0.60
0.99
0.99
0.99

 

The efficiency of the Antec HCG-620 nearly met it's claimed 80 Plus Bronze certification at low and medium DC loading but dipped to 78% at full load following the OCC power supply testing methodology. The power factor levels, rarely a problem, easily maintained over 0.9 throughout testing.

 

Supply at 230VAC:

 

 

Antec High Current Gamer 620W (HCG-620) Efficiency & Power Factor
Supply = 230VAC/50Hz
DC Load (W)
0
142
310
614
DC Load As A Percent Of Max (%)
N/A
23
50
99
Efficiency (%)
N/A
85
86
81
Power Factor (PF)
0.19
0.95
0.99
0.99

 

The Antec HCG-620 produced slightly better efficiency with the higher AC supply as is usually the case and maintained the power factor level above 0.9 throughout testing.

 

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 = 10mv/div, Timebase = 50uS/div

 

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

Oscilloscope settings: Amplitude = 10mv/div, Timebase = 50uS/div

 

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

Oscilloscope settings: Amplitude = 10mv/div, Timebase = 50uS/div

 

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

Oscilloscope settings: Amplitude = 10mv/div, Timebase = 50uS/div

 

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

Oscilloscope settings: Amplitude = 10mv/div, Timebase = 50uS/div

 

Antec High Current Gamer 620W (HCG-620) AC Ripple/Noise
Supply = 230VAC/50Hz DC Loading = 614W
DC Rail
+3V3
+5V0
+12V
-12V0
+5VSB
ATX12 Max (mV p-p)
50
50
120
120
50
Ripple (mV p-p)
25
25
24
50
38
Pass/Fail
Pass
Pass
Pass
Pass
Pass

Noise/ripple levels on all the Antec HCG-620 rails remained well under the ATX12V V2.2 specified limits at all times. Whilst not excellent results in this section they compare very well with other power supplies tested by OCC in its class.




  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
Random Pic
© 2001-2014 Overclockers Club ® Privacy Policy

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

Elapsed: 0.0279450417