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XPG Cybercore 1000 Platinum Power Supply Review

XPG teamed up with CWT and Nidec for the Cybercore 1000 power supply.

XPG Cybercore 1000 Platinum
Editor's Choice
(Image: © Tom's Hardware)

To learn more about our PSU tests and methodology, please check out How We Test Power Supply Units. 

Primary Rails And 5VSB Load Regulation

The following charts show the main rails' voltage values recorded between a range of 40W up to the PSU's maximum specified load, along with the deviation (in percent). Tight regulation is an important consideration every time we review a power supply because it facilitates constant voltage levels despite varying loads. Tight load regulation also, among other factors, improves the system’s stability, especially under overclocked conditions and, at the same time, it applies less stress to the DC-DC converters that many system components utilize.

Load regulation is not tight at 12V. We expected better results on this rail, which is the most important. The other rails perform better here, keeping up with the competition. 

Hold-Up Time

Put simply; hold-up time is the amount of time that the system can continue to run without shutting down or rebooting during a power interruption.

The hold-up time is higher than 17ms, and the power ok signal is accurate. 

Inrush Current

Inrush current, or switch-on surge, refers to the maximum, instantaneous input current drawn by an electrical device when it is first turned on. A large enough inrush current can cause circuit breakers and fuses to trip. It can also damage switches, relays, and bridge rectifiers. As a result, the lower the inrush current of a PSU right as it is turned on, the better.

Inrush current is low with 115V, but high with 230V input. 

Leakage Current

In layman's terms, leakage current is the unwanted transfer of energy from one circuit to another. In power supplies, it is the current flowing from the primary side to the ground or the chassis, which in the majority of cases is connected to the ground. For measuring leakage current, we use a GW Instek GPT-9904 electrical safety tester instrument.

The leakage current test is conducted at 110% of the DUT's rated voltage input (so for a 230-240V device, we should conduct the test with 253-264V input). The maximum acceptable limit of a leakage current is 3.5 mA and it is defined by the IEC-60950-1 regulation, ensuring that the current is low and will not harm any person coming in contact with the power supply's chassis.

(Image credit: Tom's Hardware)

Leakage current is way below the 3.5mA limit. 

10-110% Load Tests

These tests reveal the PSU's load regulation and efficiency levels under high ambient temperatures. They also show how the fan speed profile behaves under increased operating temperatures.

Test12V5V3.3V5VSBDC/AC (Watts)EfficiencyFan Speed (RPM)PSU Noise (dB[A])Temps (In/Out)PF/AC Volts
10%6.496A1.982A1.997A0.994A100.00984.327%0<6.045.01°C0.861
12.070V5.047V3.306V5.029V118.28440.79°C115.14V
20%14.020A2.975A2.997A1.195A199.96490.502%0<6.046.19°C0.992
12.058V5.044V3.303V5.023V220.97841.68°C115.1V
30%21.919A3.472A3.499A1.396A300.02291.474%0<6.046.64°C0.996
12.042V5.041V3.301V5.017V328.10641.82°C115.07V
40%29.810A3.971A4.001A1.597A399.73791.88%0<6.047.47°C0.996
12.027V5.038V3.299V5.011V435.01142.4°C115.04V
50%37.373A4.966A5.005A1.799A499.46592.004%0<6.048.47°C0.997
12.013V5.035V3.297V5.005V542.88742.83°C115.02V
60%45.039A5.966A6.013A2.001A600.02191.466%92916.243.48°C0.997
11.994V5.03V3.293V4.997V656.02949.58°C114.99V
70%52.641A6.967A7.023A2.205A699.76990.798%120724.243.92°C0.997
11.980V5.025V3.29V4.989V770.62150.76°C114.96V
80%60.342A7.97A8.032A2.308A799.82290.291%152030.244.23°C0.998
11.963V5.021V3.287V4.984V885.96252.05°C114.94V
90%68.388A8.474A8.526A2.411A899.59689.569%179435.544.84°C0.999
11.948V5.016V3.284V4.978V1004.18553.4°C114.92V
100%76.274A8.978A9.052A3.024A999.6488.835%201638.545.46°C0.998
11.930V5.013V3.281V4.961V1125.21855.04°C114.89V
110%84.115A9.983A10.158A3.026A1100.26588.152%219640.946.83°C0.998
11.911V5.009V3.278V4.958V1248.33857.55°C114.86V
CL10.116A14.304A14.452A0A121.31180.854%0<6.053.72°C0.878
12.051V5.048V3.3V5.071V150.13248.15°C115.13V
CL20.116A21.755A0A0A111.39979.795%92515.742.65°C0.873
12.058V5.056V3.302V5.1V139.58650.19°C115.13V
CL30.116A0A21.955A0A73.99473.495%92315.741.46°C0.785
12.057V5.053V3.307V5.045V100.66451.02°C115.15V
CL483.740A0A0A0A1000.13189.337%218540.746.99°C0.998
11.943V5.021V3.29V5.027V1118.93758.3°C114.89V

The PSU can easily handle harsh conditions, delivering 110% of its max-rated capacity even at 47 degrees Celsius for prolonged periods. You should not push it so hard, exceed its official rating, and expect it to outlive the provided warranty. 

20-80W Load Tests

In the following tests, we measure the PSU's efficiency at loads significantly lower than 10% of its maximum capacity (the lowest load the 80 PLUS standard measures). This is important for representing when a PC is idle with power-saving features turned on.

Test12V5V3.3V5VSBDC/AC (Watts)EfficiencyFan Speed (RPM)PSU Noise (dB[A])Temps (In/Out)PF/AC Volts
20W1.228A0.495A0.499A0.198A2067.441%0<6.039.78°C0.663
12.086V5.048V3.307V5.046V29.85636.71°C115.14V
40W2.706A0.693A0.699A0.298A39.99976.257%0<6.040.57°C0.735
12.082V5.048V3.307V5.043V52.49937.27°C115.14V
60W4.184A0.892A0.898A0.397A59.99880.508%0<6.041.84°C0.767
12.078V5.048V3.307V5.042V74.46338.09°C115.14V
80W5.658A1.09A1.098A0.496A79.95682.812%0<6.044.42°C0.833
12.074V5.048V3.307V5.04V96.40240.34°C115.13V

The PSU's fan doesn't need to spin at light loads, even with close to 40 degrees Celsius ambient. 

2% or 10W Load Test

From July 2020, the ATX spec requires 70% and higher efficiency with 115V input. The applied load is only 10W for PSUs with 500W and lower capacities, while for stronger units, we dial 2% of their max-rated capacity.

12V5V3.3V5VSBDC/AC (Watts)EfficiencyFan Speed (RPM)PSU Noise (dB[A])Temps (In/Out)PF/AC Volts
1.472A0.255A0.255A0.053A20.18166.799%0<6.017.83°C0.661
12.092V5.036V3.299V5.037V30.50315.6°C115.1V

The 60% efficiency mark, which is an ATX requirement, is passed with a 2% load. It would be nice to see over 70%. 

Efficiency and Power Factor

Next, we plotted a chart showing the PSU's efficiency at low loads and loads from 10 to 110% of its maximum rated capacity. The higher a PSU’s efficiency, the less energy goes wasted, leading to a reduced carbon footprint and lower electricity bills. The same goes for Power Factor.

With normal loads, the average efficiency is high. The problem is with light loads, where the platform needs tuning for higher efficiency. We would also like to see higher PF readings with 230V input.

5VSB Efficiency

Test #5VSBDC/AC (Watts)EfficiencyPF/AC Volts
10.1A0.499W75.264%0.052
4.989V0.663W115.14V
20.25A1.247W78.399%0.121
4.985V1.591W115.15V
30.55A2.74W79.34%0.233
4.98V3.453W115.14V
41A4.973W79.035%0.343
4.972V6.291W115.14V
51.5A7.447W79.252%0.407
4.963V9.397W115.14V
63A14.811W78.22%0.491
4.937V18.936W115.13V

The 5VSB rail has high enough efficiency.

Power Consumption In Idle And Standby

Mode12V5V3.3V5VSBWattsPF/AC Volts
Idle12.098V5.028V3.294V5.029V6.0050.292
115.09V
Standby0.0450.004
115.09V

Vampire power is low, with 115V and 230V input. 

Fan RPM, Delta Temperature and Output Noise

All results are obtained between an ambient temperature of 37 to 47 degrees Celsius (98.6 to 116.6 degrees Fahrenheit).

(Image credit: Tom's Hardware)

(Image credit: Tom's Hardware)

The fan speed profile is not aggressive, even under high operating temperature, since as you can see in the graphs above, it increases linearly and up to 500W load, the PSU's fan doesn't spin. 

The following results were obtained at 30 to 32 degrees Celsius (86 to 89.6 degrees Fahrenheit) ambient temperature.       

(Image credit: Tom's Hardware)

(Image credit: Tom's Hardware)

At average operating temperatures, close to 30 degrees Celsius, the PSU is dead silent with up to 540W load combinations. It remains in the 6-30 dBA zone with up to 725W loads, and it exceeds 35 dBA with more than 820W. 

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MORE: How We Test Power Supplies

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Aris Mpitziopoulos is a Contributing Editor at Tom's Hardware US, covering PSUs.