Customer: Cybenetics LTD
Syrou 6, Latsia, 2231, Nicosia Cyprus
Syrou 6, Latsia, 2231, Nicosia Cyprus
MAG A850GLS PCIE5
| 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) | 89.955% | 91.845% |
| Efficiency Graphs |  |  |
| Average PF (>1450 Load Combinations) | 0.983 | 0.947 |
| 12V Step | - | |
| 5V/3.3V Step | - | |
| Standby Power Consumption | 0.0370W | 0.0782W |
| ErP Lot 3/6 Ready | ✓ | |
| (EU) No 617/2013 Compliance | ✓ | |
| Average Efficiency VSB | 81.779% | 80.887% |
| Voltage | 115V | 230V |
|---|---|---|
| Noise Rating (>1450 Load Combinations) | 18.07dBA | 18.05dBA |
| Noise Graphs |  |  |
| Efficiency With 10W (≤500W) or 2% (>500W) Load | 71.388% |
| Hold Up Time | 18.60ms |
| Power OK | 16.60ms |
| Power OK to DC Loss | 2.00ms |
| Test\Rail | +12V | 5V | 3.3V | 5VSB |
| 100ms | 11.834 | 4.976 | 3.312 | 4.863 |
| 10ms | 11.597 | 4.943 | 3.282 | 4.844 |
| 1ms | 11.486 | 4.927 | 3.266 | 4.833 |
| 0.1ms | 11.374 | 4.911 | 3.251 | 4.846 |
| Product Identification Details | |
| Brand | MSI |
| Model | MAG A850GLS PCIE5 |
| OEM/ODM | CWT |
| Serial Number | - |
| Product Specifications | |
| Manufacturer | |
| Rated Voltage (Vrms) | 100-240 |
| Rated Current (Arms) | 12 |
| Rated Frequency (Hz) | 47-63 |
| Rated Power (W) | 850 |
| Operating Temperature (Continuous Full Load) (°C) | |
| Type | ATX12V |
| Cable Design | Fully Modular |
| Warranty | - |
| Cybenetics | |
| Dimensions (W x H x D) | |
| Weight | |
| Cooling | 135mm Fluid Dynamic Bearing Fan (ZFF132512H) |
| Semi-Passive Operation | ✗ |
| Cybenetics Testing Information | |
| Lab ID | MS85002806 |
| Date of receipt | Apr 23, 2025 |
| Testing Date | Mar 8, 2025 |
| Report Issued Date | May 8, 2025 |
| 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 (600mm) | 1 | 1 | 16-20AWG | No |
| 8 pin EPS12V (650mm) | 2 | 2 | 18AWG | No |
| 6+2 pin PCIe (600mm) | 2 | 2 | 18AWG | No |
| 12+4 pin PCIe (600mm) (600W) | 1 | 1 | 16-24AWG | No |
| SATA (500mm+150mm+150mm) / 4-pin Molex (+150mm) | 1 | 3 / 1 | 18AWG | No |
| SATA (500mm+150mm) / 4-pin Molex (+150mm) / FDD (+150mm) | 2 | 4 / 2 / 2 | 18-20AWG | No |
| AC Power Cord (1390mm) - C13 coupler | 1 | 1 | 18AWG | - |
| Over Voltage Protection | ✓ |
| Under Voltage Protection | ✓ |
| Over Power Protection | ✓ |
| Over Current (+12V) Protection | ✓ |
| Over Temperature Protection | ✓ |
| Short Circuit Protection | ✓ |
| Surge Protection | ✓ |
| 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 SCK207R0 (7 Ohm @25°C) & Relay |
| Bridge Rectifier(s) | 2x GBJ1506 (600V, 15A @ 100°C) |
| APFC MOSFETs | 2x STMicroelectronics STF33N60M2 (650V, 16A @ 100°C, Rds(on): 0.125Ohm) |
| APFC Boost Diode | 1x CRMicro CRXI08D065G2 (650V, 8A @ 165°C) |
| Bulk Cap(s) | 1x Teapo (420V, 560uF @ 105°C, TD(M)) |
| Main Switchers | 2x STMicroelectronics STW33N60DM2 (650V, 15.5A @ 100°C, Rds(on): 130mOhm) |
| APFC Controller | |
| Resonant Controller | Champion CM6901X |
| Topology | Primary side: APFC, Half-Bridge & LLC Resonant converter Secondary side: Synchronous Rectification & DC-DC converters |
| Secondary Side | |
| +12V MOSFETs | 6x InPower Semiconductor FTG014N04SA (40V, 145A @ 100°C, Rds(on): 1.4mOhm) |
| 5V & 3.3V | DC-DC Converters: 4x UBIQ QN3107M6N (30V, 70A @ 100°C, Rds(on): 2.6mOhm) |
| Filtering Capacitors | Electrolytic: 8x Chengx (2-3,000h @ 105°C, GR) Polymer: 3x Teapo (FP), 9x BIOSTAR, 19x |
| Fan Controller | Nuvoton MS51FB9AE |
| Fan Model | ZIC ZFF132512H (135mm, 12V, 0.45A, Fluid Dynamic Bearing Fan) |
| 5VSB | |
| Rectifier | 1x Dongke Semiconductor DK5V45R10S (45V, 10A) |
| 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 |