RM750x (ΑΤΧ v3.1)
| Electronic Loads | Chroma 63601-5 x2 Chroma 63600-2 Chroma 63640-80-80 x10 Chroma 63610-80-20 |
| AC Sources | Chroma 6530, APM SP300VAC4000W-P, GW Instek ASR-3500 |
| Power Analyzers | Rohde & Schwarz HMC8015 & NPA701 |
| 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 |
| EMI Analyzer | TekBox TBMR-110M-EU |
| Isolation Transformer | 4kVA |
| UPS | FSP Champ Tower 3kVA, CyberPower OLS3000E 3kVA |
| Testing Methodology | Cybenetics PSU Test Protocol |
| Voltage | 115V | 230V |
|---|---|---|
| Efficiency (>1450 Load Combinations) | 88.701% | 90.857% |
| Efficiency Graphs | ![]() | ![]() |
| Average PF (>1450 Load Combinations) | 0.989 | 0.960 |
| 12V Step | - | |
| 5V/3.3V Step | - | |
| Standby Power Consumption | 0.0174W | 0.0810W |
| ErP Lot 3/6 Ready | ✓ | |
| (EU) No 617/2013 Compliance | ✓ | |
| Average Efficiency VSB | 82.888% | 82.622% |
| Voltage | 115V | 230V |
|---|---|---|
| Noise Rating (>1450 Load Combinations) | 19.33dBA | 19.14dBA |
| Noise Graphs | ![]() | ![]() |
| Efficiency With 10W (≤500W) or 2% (>500W) Load | 73.996% |
| Hold Up Time | 26.60ms |
| Power OK | 22.90ms |
| Power OK to DC Loss | 3.70ms |
| Test\Rail | +12V | 5V | 3.3V | 5VSB |
| 100ms | 11.859 | 5.036 | 3.259 | 4.894 |
| 10ms | 11.561 | 4.980 | 3.207 | 4.859 |
| 1ms | 11.415 | 4.950 | 3.181 | 4.843 |
| 0.1ms | 11.339 | 4.933 | 3.162 | 4.830 |
| Product Identification Details | |
| Brand | Corsair |
| Model | RM750x (ΑΤΧ v3.1) |
| OEM/ODM | Channel Well Technology |
| Serial Number | A7QQA404M007FC |
| Product Specifications | |
| Manufacturer | |
| Rated Voltage (Vrms) | 100-240 |
| Rated Current (Arms) | 10-5 |
| Rated Frequency (Hz) | 47-63 |
| Rated Power (W) | 750 |
| Operating Temperature (Continuous Full Load) (°C) | |
| Type | ATX12V |
| Cable Design | Fully Modular |
| Warranty | - |
| Cybenetics | |
| Dimensions (W x H x D) | |
| Weight | |
| Cooling | 140mm Fluid Dynamic Bearing Fan (NR140HP) |
| Semi-Passive Operation | ✓ (selectable) |
| Cybenetics Testing Information | |
| Lab ID | CR75002406 |
| Date of receipt | Mar 14, 2024 |
| Testing Date | Apr 4, 2024 |
| Report Issued Date | Apr 5, 2024 |
| DUT Notes | CP-9020285 (Semi-Passive Off) |
| Engineer Name | - |
| Authorized By the Laboratory Technical Manager | Aristeidis Bitziopoulos |
| Signature | ![]() |
| Modular Cables | ||||
| Description | Cable Count | Connector Count (Total) | Gauge | In Cable Capacitors |
| ATX connector 20+4 pin (610mm) | 1 | 1 | 16-20AWG | No |
| 4+4 pin EPS12V (750mm) | 2 | 2 | 18AWG | No |
| 6+2 pin PCIe (650mm) | 3 | 3 | 16-18AWG | No |
| 12+2 pin PCIe (650mm) (600W) | 1 | 1 | 16-24AWG | No |
| SATA (500mm+115mm+115mm+115mm) | 2 | 8 | 18AWG | No |
| 4-pin Molex (550mm+100mm+100mm) | 1 | 3 | 18AWG | No |
| AC Power Cord (1400mm) - C13 coupler | 1 | 1 | 18AWG | - |
| General Data | |
| Manufacturer (OEM) | CWT |
| PCB Type | Double-Sided |
| Primary Side | |
| Transient Filter | 6x Y caps, 2x X caps, 2x CM chokes, 1x MOV |
| Inrush Protection | 1x NTC Thermistor SCK-037 (3 Ohm @25°C) & Relay |
| Bridge Rectifier(s) | 1x GBJ1506 (600V, 15A @ 100°C) |
| APFC MOSFETs | 2x Infineon IPA60R190P6 (650V, 12.7A @ 100°C, Rds(on): 0.190Ohm) & 1x Sync Power SPN5003 FET (for reduced no-load consumption) |
| APFC Boost Diode | 1x Onsemi FFSP0865A (650V, 8A @ 155°C) |
| Bulk Cap(s) | 1x Nippon Chemi-Con (400V, 390uF, 2000h @ 105°C, KMW) 1x Nippon Chemi-Con (400V, 470uF, 2000h @ 105°C, KMW) |
| Main Switchers | 2x Infineon IPA60R190P6 (650V, 12.7A @ 100°C, Rds(on): 0.190Ohm) |
| APFC Controller | Champion CM6500UNX |
| Resonant Controller | Champion CU6901VACNH |
| Topology | Primary side: APFC, Half-Bridge & LLC converter Secondary side: Synchronous Rectification & DC-DC converters |
| Secondary Side | |
| +12V MOSFETs | 4x Toshiba TPHR8504PL (40V, 150A @ 25°C, Rds(on): 0.85mOhm) |
| 5V & 3.3V | DC-DC Converters: 4x UBIQ QN3107M6N (30V, 70A @ 100°C, Rds(on): 2.6mOhm) PWM Controller(s): UPI-Semi uP3861P |
| Filtering Capacitors | Electrolytic: 4x Nichicon (3-6,000 @ 105°C, HD(M)), 3x Rubycon (6-10,000 @ 105°C, ZLH) 1x Rubycon (2-10,000 @ 105°C,YXF) 2x Nippon Chemi-Con (105°C, W) Polymer: 31x FPCAP, 2x Nippon Chemi-Con |
| Fan Controller | Microchip PIC16F1503 |
| Fan Model | Corsair NR140HP (140mm, 12V, 0.33A, Fluid Dynamic Bearing Fan) |
| 5VSB Circuit | |
| High Side Rectifier | 1x SMC RS1M (1000V, 1A @ 100°C) |
| Standby PWM Controller | On-Bright OB2365T |
| Photos | ![]() | ![]() |
| Top side | Power specifications label |
F.1 General Statement
Measurement uncertainty associated with the reported results was evaluated and estimated in accordance with JCGM 100:2008 (Guide to the Expression of Uncertainty in Measurement — GUM) and ISO/IEC 17025:2017, Clauses 7.6 and 7.2.
The uncertainty budget accounts for all significant identified contributors arising from the measurement process, instrumentation, test conditions, and operator interaction.
The reported expanded uncertainty U is obtained by multiplying the combined standard uncertainty uc by a coverage factor k = 2, corresponding to a confidence level of approximately 95 %, assuming a normal probability distribution.
Unless otherwise stated, the reported uncertainty applies only to the specific measurements performed and does not include long-term drift, aging effects, or future environmental changes.
F.2 Expanded Measurement Uncertainty by Measurement Type
| Measurement | Expanded Uncertainty U (k=2, norm) |
| Efficiency | ±0.43% |
| Timings | ±2.64ms |
| Power Excursions (Transient Response) | ±0.18V |
| Conducted EMI Emissions (150 kHz – 30 MHz) | ±2.35 dB |
| Noise Output | ±1.23 dB |