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NZXT HALE90 750W Power Supply Review

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Testing:

For more information on how we test our power supplies, please browse our testing methodology.

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.

DC Output Voltage Load Regulation:

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.

Voltage regulation VR= ([V no load – V full load] / V full load) x 100%

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

 NZXT HALE90 750 W (HALE90-750-M) DC Output Voltage Load Regulation Supply = 116VAC/50Hz PSU DC Rail Rail Loading Measured Voltage Permitted Regulation Actual Regulation +3.3V 0 3.38V ±5% +2.4% +5V 0 5.14V ±5% +2.7% +12V 0 12.38V ±5% +3.1% -12V 0 11.99V ±10% -0.1% +5VSB 0 5.13V ±5% +2.5% Total PSU DC Loading = 0W (0% of Rated Maximum Output Power)

 NZXT HALE90 750 W (HALE90-750-M) DC Output Voltage Load Regulation Supply = 114VAC/50Hz PSU DC Rail Rail Loading Measured Voltage Permitted Regulation Actual Regulation +3.3V 10.72W 3.37V ±5% +2.1% +5V 24.43W 5.11V ±5% +2.1% +12V 128.56W 12.35V ±5% +2.8% -12V 4.23W 11.76V ±10% -2.0% +5VSB 10.40W 5.00V ±5% 0 Total PSU DC Loading = 178W (24% of Rated Maximum Output Power)

 NZXT HALE90 750 W (HALE90-750-M) DC Output Voltage Load Regulation Supply = 113VAC/50Hz PSU DC Rail Rail Loading Measured Voltage Permitted Regulation Actual Regulation +3.3V 10.72W 3.37V ±5% +2.1% +5V 24.37W 5.11V ±5% +2.1% +12V 331.08W 12.34V ±5% +2.7% -12V 4.24W 11.77V ±10% -1.9% +5VSB 10.42W 5.01V ±5% +0.2% Total PSU DC Loading = 381W (51% of Rated Maximum Output Power)

 NZXT HALE90 750 W (HALE90-750-M) DC Output Voltage Load Regulation Supply = 112VAC/50Hz PSU DC Rail Rail Loading Measured Voltage Permitted Regulation Actual Regulation +3.3V 41.15W 3.30V ±5% 0 +5V 70.57W 4.98V ±5% -0.4% +12V 610.53W 12.24V ±5% +2.0% -12V 4.27W 11.86V ±10% -1.2% +5VSB 10.06W 4.91V ±5% -1.8% Total PSU DC Loading = 737W (98% of Rated Maximum Output Power)

Mains Input Voltage 230VAC

 NZXT HALE90 750 W (HALE90-750-M) DC Output Voltage Load Regulation Supply = 244VAC/50Hz PSU DC Rail Rail Loading Measured Voltage Permitted Regulation Actual Regulation +3.3V 0 3.38 ±5% +2.4% +5V 0 5.14 ±5% +2.7% +12V 0 12.38 ±5% +3.1% -12V 0 12.00 ±10% 0 +5VSB 0 5.13 ±5% +2.5% Total PSU DC Loading = 0W (0% of Rated Maximum Output Power)

 NZXT HALE90 750 W (HALE90-750-M) DC Output Voltage Load Regulation Supply = 242VAC/50Hz PSU DC Rail Rail Loading Measured Voltage Permitted Regulation Actual Regulation +3.3V 10.65W 3.37V ±5% +2.1% +5V 24.32W 5.11V ±5% +2.1% +12V 128.32W 12.35V ±5% +2.8% -12V 4.24W 11.77V ±10% -1.9% +5VSB 10.40W 5.00V ±5% 0 Total PSU DC Loading = 178W (24% of Rated Maximum Output Power)

 NZXT HALE90 750 W (HALE90-750-M) DC Output Voltage Load Regulation Supply = 239VAC/50Hz PSU DC Rail Rail Loading Measured Voltage Permitted Regulation Actual Regulation +3.3V 10.68W 3.37V ±5% +2.1% +5V 24.27W 5.11V ±5% +2.1% +12V 330.49W 12.35V ±5% +2.8% -12V 4.24W 11.77V ±10% -1.9% +5VSB 10.42W 5.01V ±5% +0.2% Total PSU DC Loading = 380W (51% of Rated Maximum Output Power)

 NZXT HALE90 750 W (HALE90-750-M) DC Output Voltage Load Regulation Supply = 239VAC/50Hz PSU DC Rail Rail Loading Measured Voltage Permitted Regulation Actual Regulation +3.3V 40.59W 3.30V ±5% 0 +5V 69.82W 4.98V ±5% -0.4% +12V 606.73W 12.23V ±5% +1.9% -12V 4.26W 11.86V ±10% -1.2% +5VSB 10.08W 4.92V ±5% -1.6% Total PSU DC Loading = 731W (97% of Rated Maximum Output Power)

The NZXT HALE90 750W power supply maintained it's DC rails well within the limits set down by the ATX12V V2.2 specification at all times. No problems here so let's move on.

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