
ROG-STRIX-850P-GAMING
| 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, Rohde & Schwarz 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) | 90.130% | 91.563% |
| Efficiency Graphs | ![]() | ![]() |
| Average PF (>1450 Load Combinations) | 0.991 | 0.961 |
| Standby Power Consumption | 0.0704W | 0.1407W |
| ErP Lot 3/6 Ready | ✓ | |
| (EU) No 617/2013 Compliance | ✓ | |
| Average Efficiency VSB | 81.041% | 80.441% |
| Voltage | 115V | 230V |
|---|---|---|
| Noise Rating (>1450 Load Combinations) | 23.35dBA | 23.29dBA |
| Noise Graphs | ![]() | ![]() |
| Efficiency With 10W (≤500W) or 2% (>500W) Load | 72.590 |
| Hold Up Time | 22.10 |
| Power OK | 18.80 |
| Power OK to DC Loss | 3.30 |
| Model Name | Asus |
| Lab ID | AS85002566 |
| Serial Number | 2O044109113 |
| Date of receipt | Sep 4, 2024 |
| Testing Date | Sep 11, 2024 |
| Report Issued Date | Sep 11, 2024 |
| DUT Notes | 2566 |
| Engineer Name | |
| Authorized By the Laboratory General Manager | Aristeidis Bitziopoulos |
| Signature | ![]() |
| Modular Cables | ||||
| Description | Cable Count | Connector Count (Total) | Gauge | In Cable Capacitors |
| ATX connector 20+4 pin (610mm) | 1 | 1 | 18AWG | No |
| 4+4 pin EPS12V (1000mm) | 2 | 2 | 18AWG | No |
| 6+2 pin PCIe (750mm) | 3 | 3 | 18AWG | No |
| 12+4 pin PCIe (745mm) (600W) | 1 | 1 | 16-24AWG | No |
| SATA (400mm+120mm+120mm) | 2 | 6 | 18AWG | No |
| 4-pin Molex (390mm+150mm+150mm) | 1 | 3 | 18AWG | No |
| Manufacturer (OEM) | Great Wall |
| Max. DC Output | 850W |
| Efficiency (115V) | 80 PLUS Platinum, Cybenetics Platinum (89-91%) |
| Efficiency (230V) | Cybenetics Platinum (91-93%) |
| Noise | Cybenetics A (20-25 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 Dual Ball Bearing Fan (F1214025BL) |
| Semi-Passive Operation | ✓ (Selectable) |
| Dimensions (W x H x D) | 150 x 85 x 160mm |
| Weight | 1.75 kg (3.85 lb) |
| Form Factor | ATX12V v3.1, EPS 2.92 |
| ATX 3.1 & PCIe 5.1 ready | ✓ |
| Alternative Low Power Mode (ALPM) compatible | ✓ |
| Warranty | 10 Years |
| General Data | |
| Manufacturer (OEM) | Great Wall |
| PCB Type | Double-Sided |
| Primary Side | |
| Transient Filter | 4x Y caps, 2x X caps, 2x CM chokes, 1x MOV |
| Inrush Protection | 1x NTC Thermistor SCK-205R0 (5 Ohm @ 25°C) & Relay |
| Bridge Rectifier(s) | 1x GBUU2508 (800V, 25A @ 110°C) |
| APFC GANFETs | 1x Transphorm TP65H050G4WS (650V, 22A @ 100°C, Rds(on): 60mOhm) |
| APFC Boost Diode | 1x ROHN SCS306AH (650V, 6A @ 135°C) |
| Bulk Cap(s) | 1x Nichicon (420V, 470uF, 3,000h @ 105°C, GN(M)) 1x Nichicon (420V, 390uF, 3,000h @ 105°C, GN(M)) |
| Main Switchers | 2x Fuji FMP60N094S2FDHF (600V, 26.8A @ 100°C, Rds(on): 0.094Ohm) |
| Driver IC | 1x NOVOSENSE NSi6602BD |
| APFC Controller | Champion CM6502UHHX & 1x Champion CM03X (reduce the no-load consumption) |
| Resonant Controller | Champion CM6901X |
| Topology | Primary side: APFC, Half-Bridge & LLC converter Secondary side: Synchronous Rectification & DC-DC converters |
| Secondary Side | |
| +12V MOSFETs | 4x Infineon BSC010N04LS6 (40V, 201A @ 100°C, Rds(on): 1.0mOhm) |
| 5V & 3.3V | DC-DC Converters: 4x DMT3004LPS (30V, 17A @ 70°C, Rds(on): 3.8mOhm) PWM Controller(s): Anpec APW7159C |
| Filtering Capacitors | Electrolytic: 11x Nichicon (6-10000 @ 105°C, UHW) 2x Rubycon (4-10,000 @ 105°C, YXJ), 1x Rubycon (3-6,000 @ 105°C, YXG), 1x Rubycon (2-10,000 @ 105°C, YXF), Polymer: 31x FPCap, 1x Nippon Chemi-con |
| Supervisor IC | Weltrend WT7681P |
| Fan Controller | AS358M |
| Fan Model | Everflow F1214025BL (135mm, 12V, 0.20A, Dual Ball Bearing Fan) |
| 5VSB Circuit | |
| TVS Diode | Littelfuse SMBJ170A |
| Rectifiers | SBR10E45P4 (45V, 10A) & 1x ER2J (600V, 2A @ 100°C) |
| Standby PWM Controller | Power Integrations TNY278PN |
| Rated Voltage (Vrms) | 100-240 |
| Rated Current (Arms) | 10-5.5 |
| Rated Frequency (Hz) | 47-63 |
| Rated Power (W) | 850 |
| Type | ATX12V |
| Dimensions (W x H x D) | |
| Cooling | 135mm Dual Ball Bearing Fan (F1214025BL) |
| 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 |