Customer: NZXT
C750 Gold Core
| Electronic Loads |
Chroma 63601-5 x2 |
|
| AC Sources | Chroma 6530, APM SP300VAC4000W-P | |
| Power Analyzers | RS HMC8015 | |
| Oscilloscopes | Picoscope 4444, Siglent SDS2104X PLUS | |
| Sound Analyzer | Bruel & Kjaer 2270 G4 | |
| Microphone | Bruel & Kjaer Type 4955-A | |
| Temperature Logger | Picoscope TC-08 | |
| Tachometer | UNI-T UT372 | |
| Multimeters | Keysight 34465A | |
| UPS | FSP Champ Tower 3kVA, CyberPower OLS3000E 3kVA | |
| Isolation Transformer | 4kVA | Testing Methodology | Cybenetics PSU Test Protocol |
| Voltage | 115V | 230V |
|---|---|---|
| Efficiency (>1450 Load Combinations) | 90.177% | 92.070% |
| Efficiency Graphs |  |  |
| Average PF (>1450 Load Combinations) | 0.987 | 0.955 |
| Standby Power Consumption | 0.0519W | 0.1120W |
| ErP Lot 3/6 Ready | ✓ | |
| (EU) No 617/2013 Compliance | ✓ | |
| Average Efficiency VSB | 80.978% | 80.223% |
| Conducted Emissions EN55032 & CISPR 32 | Passed | |
| Voltage | 115V | 230V |
|---|---|---|
| Noise Rating (>1450 Load Combinations) | 8.70dBA | 9.15dBA |
| Noise Graphs |  |  |
| Efficiency With 10W (≤500W) or 2% (>500W) Load | 65.671 |
| Hold Up Time | 19.20 |
| Power OK | 16.60 |
| Power OK to DC Loss | 2.60 |
| Model Name | NZXT |
| Lab ID | NZ75002900 |
| Serial Number | - |
| Date of receipt | Jun 24, 2025 |
| Testing Date | Jul 24, 2025 |
| Report Issued Date | Jul 28, 2025 |
| DUT Notes | 2900 |
| Engineer Name | Georgios Theodoros Sarimpalas |
| Authorized By the Laboratory General Manager | Aristeidis Bitziopoulos |
| Signature |  |
| Modular Cables | ||||
| Description | Cable Count | Connector Count (Total) | Gauge | In Cable Capacitors |
| ATX connector 24 pin (600mm) | 1 | 1 | 16-18AWG | No |
| 4+4 pin EPS12V (700mm) | 1 | 1 | 18AWG | No |
| 8 pin EPS12V (700mm) | 1 | 1 | 18AWG | No |
| 6+2 pin PCIe (650mm) | 2 | 2 | 18AWG | No |
| 12+4 pin PCIe (650mm) (300W) | 1 | 1 | 16-24AWG | No |
| SATA (500mm+150mm+150mm+150mm) | 2 | 8 | 18AWG | No |
| 4-pin Molex (500mm+150mm+150mm) | 1 | 3 | 18AWG | No |
| Manufacturer (OEM) | HEC |
| Max. DC Output | 750W |
| Efficiency (115V) | Cybenetics Platinum (90.177%) |
| Efficiency (230V) | Cybenetics Platinum (92.070%) |
| Noise (115V) | Cybenetics A++ (8.70 dB[A]) |
| Noise (230V) | Cybenetics A++ (9.15 dB[A]) |
| Modular | ✓ (Fully) |
| Intel C6/C7 Power State Support | ✓ |
| Operating Temperature (Continuous Full Load) | 0 - 50°C |
| Over Voltage Protection | ✓ |
| Under Voltage Protection | ✓ |
| Over Power Protection | ✓ |
| Over Current (+12V) Protection | ✓ |
| Over Temperature Protection | ✓ |
| Short Circuit Protection | ✓ |
| Surge Protection | ✓ |
| Inrush Current Protection | ✓ |
| Fan Failure Protection | ✗ |
| No Load Operation | ✓ |
| Cooling | 135mm Fluid Dynamic Bearing Fan (HA13525H12SF-Z) |
| Semi-Passive Operation | ✓ (Selectable) |
| Dimensions (W x H x D) | 150 x 86 x 150mm |
| Weight | 1.61 kg (3.55 lb) |
| Form Factor | ATX12V v3.1, EPS 2.92 |
| ATX 3.1 & PCIe 5.1 ready | ✓ |
| Alternative Low Power Mode (ALPM) compatible | ✓ |
| Warranty | No Info |
| General Data | |
| Manufacturer (OEM) | HEC |
| PCB Type | Double-Sided |
| Primary Side | |
| Transient Filter | 4x Y caps, 3x X caps, 2x CM chokes, 1x MOV, 1x Power Integrations CAP200DG (X Capacitor Discharge IC) |
| Inrush Protection | 1x NTC Thermistor MF72 5D-15 (5 Ohm) & Relay |
| Bridge Rectifier(s) | 2x GBU1008 (800V, 10A @ 100°C) |
| APFC MOSFETs | 2x CRMicro CRJF125N60G2F (600V, 17A @ 100°C, Rds(on): 125mOhm) |
| APFC Boost Diode | 1x Sanan SDS065J006C3 (650V, 6A @ 155°C) |
| Bulk Cap(s) | 1x Teapo (400V, 470uF @ 105°C, TC(V)) |
| Main Switchers | 2x NCEPower NCE65TF130F (650V, 18A @ 25°C, Rds(on): 109mOhm) |
| APFC Controller | |
| Resonant Controller | Champion CM6901T6X |
| Topology | |
| Secondary Side | |
| +12V MOSFETs | 4x Pingwei PWC012N04ES (40V, 132A @ 100°C, Rds(on): 1.2mOhm) |
| 5V & 3.3V | DC-DC Converters: PWM Controller(s): ANPEC APW7159C |
| Filtering Capacitors | Electrolytic: |
| Supervisor IC | Weltrend WT7527RT (OVP, UVP, OCP, SCP, PG) |
| MCU | Nuvoton M051FB9AE |
| Fan Model | Hong Hua HA13525H12SF-Z (135mm, 12V, 0.50A, Fluid Dynamic Bearing Fan) |
| 5VSB | |
| Rectifier | 1x PingWei PS1065L (60V, 10A) |
| Standby PWM Controller | Excelliance MOS EM8569D |
| Rated Voltage (Vrms) | 100-240 |
| Rated Current (Arms) | 5-10 |
| Rated Frequency (Hz) | 50-60 |
| Rated Power (W) | 750 |
| Type | ATX12V |
| Dimensions (W x H x D) | 150 x 86 x 150mm |
| Cooling | 135mm Fluid Dynamic Bearing Fan (HA13525H12SF-Z) |
| Semi-Passive Operation | ✓ (selectable) |
| Cable Design | Fully Modular |
The Efficiency Measurement’s Uncertainty is ±0.15%
The reported expanded uncertainty (U) was derived as the product of the combined standard uncertainty (u) and the coverage factor k = 2, corresponding to a confidence interval of approximately 95%. Measurement uncertainty was determined in accordance with JCGM Guide 100:2008, "Guide to the Expression of Uncertainty in Measurements". The estimate of the reported uncertainty pertains to values obtained during the measurements and does not account for possible long-term changes.
Efficiency Measurement Uncertainty Budget
| Source of Uncertainty | Standard Uncertainty, u(xi) | Relative Standard Uncertainty, u(xi)/xi |
| Intralab Reproducibility | 0.0310 | 0.00031 |
| Electronic loads Calibration | 0.0500 | 0.00050 |
| Power Analyzer Calibration | 0.0250 | 0.00025 |
| Operator and Test Fixture | 0.0350 | 0.00035 |
| Relative Combined Standard Uncertainty (RSS): | 0.00073 | |
| % Expanded Uncertainty U (k=2, norm): | 0.15 | |
The Noise Measurement’s Uncertainty is ±1.23 dBA
The reported expanded uncertainty (U) was derived as the product of the combined standard uncertainty (u) and the coverage factor k = 2, corresponding to a confidence interval of approximately 95%. Measurement uncertainty was determined in accordance with JCGM Guide 100:2008, "Guide to the Expression of Uncertainty in Measurements". The estimate of the reported uncertainty pertains to values obtained during the measurements and does not account for possible long-term changes.
| Source of Uncertainty |
Standard Uncertainty, u(xi)/xi (dBA) |
| Intralab Reproducibility | 0.031 |
| Mic Calibrator 4231 calibration | 0.200 |
| Microphone frequency response | 0.577 |
| Temperature | 0.12 |
| Position error | 0.058 |
| Relative Combined Standard Uncertainty (RSS): | 0.61 |
| Expanded Uncertainty U (k=2, norm): | 1.23 |
The Conducted EMI Emissions Measurement’s Uncertainty is ±1.75 dB
The reported expanded uncertainty (U) was derived as the product of the combined standard uncertainty (u) and the coverage factor k = 2, corresponding to a confidence interval of approximately 95%. Measurement uncertainty was determined in accordance with JCGM Guide 100:2008, "Guide to the Expression of Uncertainty in Measurements". The estimate of the reported uncertainty pertains to values obtained during the measurements and does not account for possible long-term changes.
| Source of Uncertainty |
Standard Uncertainty, u(xi)/xi (dB) |
| Spectrum Analyzer total measurement uncertainty | 0.250 |
| Spectrum Analyzer calibration | 0.500 |
| Noise and Signal Quality | 0.577 |
| Bandwidth and Resolution Bandwidth (RBW) | 0.289 |
| Measurement time and Averaging | 0.115 |
| Environmental Factors | 0.115 |
| Relative Combined Standard Uncertainty (RSS): | 0.87 |
| Expanded Uncertainty U (k=2, norm): | 1.75 |