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XPG Core Reactor 750 W Review
Fan Noise »Efficiency
Using the results we gathered so far, we plotted a chart showing the PSU's efficiency at low loads and loads ranging from 10 to 110 percent of its maximum-rated capacity.
Efficiency levels are high in all load ranges.
10-110% Load Testing
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 tough operating conditions.| Load Regulation & Efficiency Testing Data - XPG Core Reactor 750 W | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Test | 12 V | 5 V | 3.3 V | 5VSB | Power (DC/AC) | Efficiency | Fan Speed | PSU Noise | Temp (In/Out) | PF/AC Volts |
| 10% Load | 4.387A | 1.980A | 1.997A | 0.994A | 74.966W | 86.063% | 639 RPM | 9.3 dB(A) | 40.02°C | 0.833 |
| 12.164V | 5.052V | 3.304V | 5.031V | 87.106W | 44.85°C | 230.23V | ||||
| 20% Load | 9.879A | 2.972A | 2.998A | 1.194A | 150.042W | 90.882% | 641 RPM | 9.4 dB(A) | 40.40°C | 0.928 |
| 12.060V | 5.049V | 3.301V | 5.025V | 165.096W | 46.06°C | 230.23V | ||||
| 30% Load | 15.680A | 3.466A | 3.502A | 1.395A | 225.051W | 92.453% | 645 RPM | 9.5 dB(A) | 41.42°C | 0.956 |
| 12.054V | 5.046V | 3.299V | 5.019V | 243.423W | 47.74°C | 230.23V | ||||
| 40% Load | 21.457A | 3.965A | 4.004A | 1.596A | 300.063W | 92.928% | 648 RPM | 9.6 dB(A) | 41.85°C | 0.968 |
| 12.064V | 5.045V | 3.297V | 5.013V | 322.900W | 48.82°C | 230.23V | ||||
| 50% Load | 26.722A | 4.960A | 5.010A | 1.798A | 374.599W | 92.846% | 656 RPM | 9.8 dB(A) | 42.51°C | 0.975 |
| 12.128V | 5.042V | 3.294V | 5.007V | 403.462W | 49.87°C | 230.23V | ||||
| 60% Load | 32.139A | 5.955A | 6.015A | 2.000A | 449.491W | 92.107% | 1122 RPM | 24.8 dB(A) | 42.67°C | 0.980 |
| 12.125V | 5.039V | 3.291V | 5.001V | 488.011W | 50.58°C | 230.23V | ||||
| 70% Load | 37.602A | 6.953A | 7.028A | 2.203A | 524.819W | 91.688% | 1365 RPM | 30.7 dB(A) | 43.22°C | 0.982 |
| 12.119V | 5.035V | 3.288V | 4.995V | 572.396W | 51.54°C | 230.23V | ||||
| 80% Load | 43.066A | 7.955A | 8.035A | 2.406A | 600.127W | 91.240% | 1714 RPM | 37.7 dB(A) | 43.88°C | 0.984 |
| 12.114V | 5.032V | 3.285V | 4.988V | 657.749W | 52.72°C | 230.23V | ||||
| 90% Load | 48.897A | 8.451A | 8.527A | 2.407A | 674.649W | 90.855% | 1886 RPM | 39.8 dB(A) | 44.13°C | 0.985 |
| 12.110V | 5.030V | 3.283V | 4.987V | 742.556W | 54.04°C | 230.23V | ||||
| 100% Load | 54.530A | 8.953A | 9.053A | 3.019A | 749.864W | 90.376% | 2092 RPM | 42.6 dB(A) | 45.00°C | 0.986 |
| 12.106V | 5.028V | 3.281V | 4.970V | 829.712W | 55.45°C | 230.23V | ||||
| 110% Load | 60.749A | 8.955A | 9.058A | 3.020A | 825.088W | 89.945% | 2271 RPM | 45.2 dB(A) | 46.81°C | 0.987 |
| 12.105V | 5.027V | 3.279V | 4.968V | 917.324W | 58.28°C | 230.23V | ||||
| Crossload 1 | 0.101A | 14.003A | 13.997A | 0.000A | 117.720W | 84.313% | 860 RPM | 16.4 dB(A) | 41.99°C | 0.911 |
| 12.085V | 5.032V | 3.289V | 5.064V | 139.622W | 49.71°C | 230.24V | ||||
| Crossload 2 | 62.512A | 0.998A | 1.000A | 1.000A | 770.362W | 90.861% | 2104 RPM | 42.6 dB(A) | 45.21°C | 0.986 |
| 12.110V | 5.043V | 3.292V | 5.017V | 847.845W | 55.09°C | 230.23V | ||||
This PSU copes with increased operating temperatures very well, but you shouldn't expect it to operate silently under such conditions.
Light Load Testing
The following tests measure the PSU's efficiency at loads significantly lower than 10 percent of the 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.| Efficiency at Low Loads - XPG Core Reactor 750 W | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Test # | 12 V | 5 V | 3.3 V | 5 VSB | Power (DC/AC) | Efficiency | Fan Speed | PSU Noise | PF/AC Volts |
| 1 | 2.916A | 0.496A | 0.498A | 0.198A | 40.035W | 82.261% | 619 RPM | 8.9 dB(A) | 0.669 |
| 11.962V | 5.055V | 3.306V | 5.050V | 48.668W | 230.23V | ||||
| 2 | 4.086A | 0.990A | 0.997A | 0.397A | 59.985W | 84.010% | 627 RPM | 9.0 dB(A) | 0.784 |
| 12.160V | 5.053V | 3.305V | 5.044V | 71.402W | 230.23V | ||||
| 3 | 5.310A | 1.484A | 1.499A | 0.595A | 80.023W | 86.712% | 631 RPM | 9.1 dB(A) | 0.844 |
| 12.161V | 5.052V | 3.304V | 5.040V | 92.286W | 230.23V | ||||
| 4 | 6.578A | 1.979A | 1.998A | 0.795A | 100.054W | 88.268% | 634 RPM | 9.2 dB(A) | 0.881 |
| 12.079V | 5.051V | 3.303V | 5.035V | 113.353W | 230.23V | ||||
The fan spins at its lowest speed in these tests, so output noise is minimal.
Ultra-Light Load Testing
The applied load in this test is only 10 W for PSUs with 500 W and less capacity. We dial in 2% of the maximum-rated capacity for all other PSUs. We only run this test with 115 V input.| Efficiency at Low Loads - XPG Core Reactor 750 W | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Test # | 12 V | 5 V | 3.3 V | 5 VSB | Power (DC/AC) | Efficiency | Fan Speed | PSU Noise | PF/AC Volts |
| 1 | 1.064A | 0.244A | 0.246A | 0.051A | 15.005W | 71.572% | 591 RPM | 8.3 dB(A) | 0.800 |
| 11.937V | 5.054V | 3.307V | 5.053V | 20.965W | 115.10V | ||||
Efficiency with incredibly light loads is high because the LLC converter utilizes burst mode, which CWT calls "kick mode."
5VSB Efficiency
| 5VSB Efficiency - XPG Core Reactor 750 W | ||||
|---|---|---|---|---|
| Test # | 5VSB | Power (DC/AC) | Efficiency | PF/AC Volts |
| 1 | 0.100A | 0.505W | 73.188% | 0.021 |
| 5.052V | 0.690W | 230.23V | ||
| 2 | 0.250A | 1.262W | 76.998% | 0.049 |
| 5.048V | 1.639W | 230.23V | ||
| 3 | 0.550A | 2.772W | 78.041% | 0.101 |
| 5.039V | 3.552W | 230.22V | ||
| 4 | 1.000A | 5.028W | 79.094% | 0.167 |
| 5.027V | 6.357W | 230.22V | ||
| 5 | 1.500A | 7.521W | 79.386% | 0.224 |
| 5.013V | 9.474W | 230.23V | ||
| 6 | 3.000A | 14.918W | 79.284% | 0.326 |
| 4.972V | 18.816W | 230.24V | ||
The 5VSB rail is very efficient.
Power Consumption in Idle and Standby
| Idle / Standby - XPG Core Reactor 750 W | ||||||
|---|---|---|---|---|---|---|
| Mode | 12 V | 5 V | 3.3 V | 5VSB | Power (AC) | PF/AC Volts |
| Idle | 11.940V | 5.054V | 3.307V | 5.052V | 2.786W | 0.076 |
| 230.2V | ||||||
| Standby | 0.048W | 0.001 | ||||
| 230.2V | ||||||
Vampire power consumption is low.
Feb 4th, 2025 06:31 EST
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