Welcome Stranger to OCC!

Antec High Current Gamer 620W Power Supply Review

-

Testing:

Throughout the tables all passes will be highlighted with green text and failures in red.

Short Circuit Protection:

I short circuited the 3V3, 5V0 and the 12V rail(s) in turn. The power supply did shut down, and once the short was removed and the unit switched off for at least one second, resumed normal operation. Although listed here at the beginning of the testing section, I tend to leave this test until the very end, in case it doesn't quite go to plan.

In an ideal world the ATX power supply, or any other for that matter, should maintain its DC rails at a constant voltage but this is very difficult to achieve due to variations in the AC mains supply and changing DC load levels. The ATX12V V2.2 specification limits for this variation, expressed as a percentage, either side of the ideal voltage are given in the table below.

 PSU Rail Range Minimum Nominal Maximum +3V3 ±5% +3.14V +3.30V +3.47V +5V ±5% +4.75V +5.00V +5.25V +12V ±5%* +11.40V +12.00V +12.60V -12V ±10% -10.80V -12.00V -13.20V +5VSB ±5% +4.75V +5.00V +5.25V

*The +12V rail is permitted to go to ±10% at its rated maximum DC load.

There is no unit associated with voltage regulation, it is a simple ratio expressed as a percentage.

This equation is used to measure the voltage regulation of a simple single rail power supply but measuring the voltage regulation of the ATX power supply and the difference from the specified rail voltage will require a slightly different tack.

ATX Power Supply regulation = ([V measured - V specified] / V measured) x 100%

This will give the difference as a percentage from the specified rail voltage, +3.3V, +5V, +12V, etc.

There will be very few, if any, power supply failures in this section. The switched mode power supply is very good at maintaining its rail(s) at the correct voltage; they are constantly monitored and any changes are instantly fed back to the control circuitry and the necessary adjustments made to correct any error. So why test? The tighter the regulation the better, ±5% is acceptable, ±3% is very good and ±2% is excellent and the quality of the regulation is a useful indicator of the power supply’s overall quality.

Mains Input Voltage 110VAC

 Antec High Current Gamer 620W (HCG-620) DC Output Voltage Load Regulation Supply = 116VAC/50Hz PSU DC Rail Rail Loading Measured Voltage Permitted Regulation Actual Regulation +3.3V 0 3.41V 3.3V±5% +3.3% +5V 0 5.06V 5.0V±5% +1.2% +12V 0 12.13V 12.0V±5% +1.1% -12V 0 11.71V 12.0V±10% -2.4% +5VSB 0 5.06V 5.0V±5% +1.2% Total PSU DC Loading = 0W (0% of Rated Maximum Output Power)

 Antec High Current Gamer 620W (HCG-620) DC Output Voltage Load Regulation Supply = 114VAC/50Hz PSU DC Rail Rail Loading Measured Voltage Permitted Regulation Actual Regulation +3.3V 3.17A 3.41V 3.3V±5% +3.3% +5V 4.63A 5.01V 5.0V±5% +0.2% +12V 7.68A 12.22V 12.0V±5% +1.8% -12V 0.36A 11.65V 12.0V±10% -2.9% +5VSB 2.00A 4.92V 5.0V±5% -1.6% Total PSU DC Loading = 142W (23% of Rated Maximum Output Power)

 Antec High Current Gamer 620W (HCG-620) DC Output Voltage Load Regulation Supply = 113VAC/50Hz PSU DC Rail Rail Loading Measured Voltage Permitted Regulation Actual Regulation +3.3V 3.17A 3.40V 3.3V±5% +3.0% +5V 4.67A 5.04V 5.0V±5% +0.8% +12V 21.53A 12.13V 12.0V±5% +1.1% -12V 0.36A 11.78V 12.0V±10% -1.8% +5VSB 2.02A 4.94V 5.0V±5% -1.2% Total PSU DC Loading = 310W (50% of Rated Maximum Output Power)

 Antec High Current Gamer 620W (HCG-620) DC Output Voltage Load Regulation Supply = 111VAC/50Hz PSU DC Rail Rail Loading Measured Voltage Permitted Regulation Actual Regulation +3.3V 7.90A 3.40V 3.3V±5% +3.0% +5V 9.00A 5.03A 5.0V±5% +0.6% +12V 43.34A 12.14A 12.0V±5% +1.2% -12V 0.37A 11.91V 12.0V±10% -0.8% +5VSB 1.99A 4.93V 5.0V±5% -1.4% Total PSU DC Loading = 612W (99% of Rated Maximum Output Power)

Mains Input Voltage 230VAC

 Antec High Current Gamer 620W (HCG-620) DC Output Voltage Load Regulation Supply = 243VAC/50Hz PSU DC Rail Rail Loading Measured Voltage Permitted Regulation Actual Regulation +3.3V 0 3.41V 3.3V±5% +3.3% +5V 0 5.06V 5.0V±5% +1.2% +12V 0 12.13V 12.0V±5% +1.1% -12V 0 11.73V 12.0V±10% -2.3% +5VSB 0 5.07V 5.0V±5% +1.4% Total PSU DC Loading = 0W (0% of Rated Maximum Output Power)

 Antec High Current Gamer 620W (HCG-620) DC Output Voltage Load Regulation Supply = 244VAC/50Hz PSU DC Rail Rail Loading Measured Voltage Permitted Regulation Actual Regulation +3.3V 3.16A 3.41V 3.3V±5% +3.3% +5V 4.63A 5.01V 5.0V±5% +0.2% +12V 7.68A 12.22V 12.0V±5% +1.8% -12V 0.36A 11.77V 12.0V±10% -1.9% +5VSB 2.00A 4.93V 5.0V±5% -1.4% Total PSU DC Loading = 142W (23% of Rated Maximum Output Power)

 Antec High Current Gamer 620W (HCG-620) DC Output Voltage Load Regulation Supply = 240VAC/50Hz PSU DC Rail Rail Loading Measured Voltage Permitted Regulation Actual Regulation +3.3V 3.15A 3.40V 3.3V±5% +3.0% +5V 4.68A 5.04V 5.0V±5% +0.8% +12V 21.51A 12.14V 12.0V±5% +1.2% -12V 0.36A 11.78V 12.0V±10% -1.8% +5VSB 2.02A 4.94V 5.0V±5% -1.2% Total PSU DC Loading = 310W (50% of Rated Maximum Output Power)

 Antec High Current Gamer 620W (HCG-620) DC Output Voltage Load Regulation Supply = 235VAC/50Hz PSU DC Rail Rail Loading Measured Voltage Permitted Regulation Actual Regulation +3.3V 7.97A 3.40V 3.3V±5% +3.0% +5V 9.20A 5.03V 5.0V±5% +0.6% +12V 43.33A 12.15V 12.0V±5% +1.3% -12V 0.37A 11.80V 12.0V±10% -1.7% +5VSB 1.99A 4.93V 5.0V±5% -1.4% Total PSU DC Loading = 614W (99% of Rated Maximum Output Power)

The Antec HCG620 performed very well in this section with all the rails remaining well within the limits set down by the ATX12V V2.2 specification.

Related Products