Customer: Cybenetics LTD
Syrou 6, Latsia, 2231, Nicosia Cyprus
Syrou 6, Latsia, 2231, Nicosia Cyprus
RM850e (ThermalProtect)
| 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) | 89.189% | 91.162% |
| Efficiency Graphs |  |  |
| Average PF (>1450 Load Combinations) | 0.987 | 0.954 |
| 12V Step | 8.00W | |
| 5V/3.3V Step | 3.00W | |
| Standby Power Consumption | 0.0533W | 0.1045W |
| ErP Lot 3/6 Ready | ✓ | |
| (EU) No 617/2013 Compliance | ✓ | |
| Average Efficiency VSB | 80.669% | 80.056% |
| Conducted Emissions EN 55032 & CISPR 32 (48W) | Passed | |
| Conducted Emissions Graphs |  |  |
| Voltage | 115V | 230V |
|---|---|---|
| Noise Rating (>1450 Load Combinations) | 18.98dBA | 18.61dBA |
| Noise Graphs |  |  |
| Efficiency With 10W (≤500W) or 2% (>500W) Load | 67.219% |
| Hold Up Time | 17.10ms |
| Power OK | 14.60ms |
| Power OK to DC Loss | 2.50ms |
| Test\Rail | +12V | 5V | 3.3V | 5VSB |
| 100ms | 11.866 | 4.957 | 3.289 | 4.879 |
| 10ms | 11.675 | 4.945 | 3.281 | 4.902 |
| 1ms | 11.560 | 4.930 | 3.267 | 4.890 |
| 0.1ms | 11.450 | 4.916 | 3.253 | 4.878 |
| Product Identification Details | |
| Brand | Corsair |
| Model | RM850e (ThermalProtect) |
| OEM/ODM | HEC |
| Serial Number | 4701 |
| Product Specifications | |
| Manufacturer | |
| Rated Voltage (Vrms) | 100-240 |
| Rated Current (Arms) | 5-10 |
| Rated Frequency (Hz) | 47-63 |
| Rated Power (W) | 850 |
| Operating Temperature (Continuous Full Load) (°C) | 0 - 40 |
| Type | ATX12V |
| Cable Design | Fully Modular |
| Warranty | 3 years |
| Cybenetics | |
| Dimensions (W x H x D) | 150 x 85 x 140mm |
| Weight | 1.53 kg (3.37 lb) |
| Cooling | 120mm Rifle Bearing Fan (HA1225H12SF-Z) |
| Semi-Passive Operation | ✓ |
| Cybenetics Testing Information | |
| Lab ID | CR85003250 |
| Date of receipt | Mar 18, 2026 |
| Testing Date | Apr 10, 2026 |
| Report Issued Date | Apr 17, 2026 |
| Engineer Name | Georgios Theodoros Sarimpalas |
| Authorized By the Laboratory Technical Manager | Aristeidis Bitziopoulos |
| Signature |  |
| Modular Cables | ||||
| Description | Cable Count | Connector Count (Total) | Gauge | Cable Type |
| ATX connector 24 pin (605mm) | 1 | 1 | 16-20AWG | Tinned Copper |
| 4+4 pin EPS12V (740mm) | 2 | 2 | 18AWG | Tinned Copper |
| 2x 6+2 pin PCIe (640mm) | 2 | 2 | 16AWG | Tinned Copper |
| 6+2 pin PCIe (640mm) | 1 | 1 | 18AWG | Tinned Copper |
| 12+4 pin PCIe (640mm) (600W) | 1 | 1 | 16-28AWG | Tinned Copper |
| SATA (440mm+100mm+100mm+100mm) | 1 | 4 | 18AWG | Tinned Copper |
| 4-pin Molex (440mm+100mm+100mm+100mm) | 1 | 4 | 18AWG | Tinned Copper |
| Over Power Protection | ✓ |
| Over Current (+12V) Protection | ✓ |
| Over Temperature Protection | ✓ |
| Short Circuit Protection | ✓ |
| Surge Protection | ✓ |
| Inrush Current Protection | ✓ |
| Fan Failure Protection | ✗ |
| General Data | |
| Manufacturer (OEM) | HEC |
| PCB Type | Double-Sided |
| Primary Side | |
| Transient Filter | 2x Y caps, 3x X caps, 2x CM chokes, 1x MOV |
| Inrush Protection | NTC Thermistor SCK-056 (5 Ohm) & Relay |
| Bridge Rectifier(s) | 2x GBU15KL (600V, 15A @ 100°C) |
| APFC MOSFETs | 2x Great Power GP36S60YERD |
| APFC Boost Diode | 1x Wolfspeed C6D08065A (650V, 8A @ 155°C) |
| Bulk Cap(s) | 1x Teapo (400V, 470uF, 2,000h @ 105°C, LS ) |
| Main Switchers | 2x CR Micro CRJF99N65G2 (650V, 20A @ 100°C, Rds(on): 0.81 Ohm) |
| APFC Controller | Champion CM6500UNX & Champion CM03AX (reducing no load consumption) |
| Resonant Controller | Champion CM6901T6X |
| Topology | Primary side: APFC, Half-Bridge & LLC Resonant converter Secondary side: Synchronous Rectification & DC-DC converters |
| Secondary Side | |
| +12V MOSFETs | 6x Pingwei PWC012N04ES (40V, 132A @ 100°C, Rds(on): 1.2 mOhm) |
| 5V & 3.3V | DC-DC Converters: 4x Potens Semiconductor PDC3906X (30V, 51A @ 100°C, Rds(on): 5.5 mOhm) PWM Controller(s): 1x ANPEC APW7159C |
| Filtering Capacitors | Electrolytic: |
| Supervisor IC | Weltrend WT7527RT (OCP, OVP, UVP, SCP, PG) |
| Fan Controller | Nuvoton MS51FB9AE |
| Fan Model | Hong Hua HA1225H12SF-Z (120mm, 12V, 0.58A, Rifle Bearing Fan) |
| 5VSB Circuit | |
| Rectifier | 1x PS1060L SBR (60V, 10A) |
| Standby PWM Controller | Excelliance MOS EM8569D |
| 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 | ±0.18% |
| Timings | ±0.48ms |
| Power Excursions (Transient Response) | ±0.1V |
| Conducted EMI Emissions (150 kHz – 30 MHz) | ±2.35 dB |
| Noise Output | ±1.23 dB |