Customer: Cybenetics LTD
Syrou 6, Latsia, 2231, Nicosia Cyprus

RM750x (ΑΤΧ v3.1)

Report Number: 24PS2406A
Customer ID: 28
Lab ID: CR75002406

Test Results Report

Section A: Testing Equipment

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

Section B: ETA

Voltage115V230V
Efficiency (>1450 Load Combinations)88.701%90.857%
Efficiency Graphs
Average PF (>1450 Load Combinations)0.9890.960
12V Step-
5V/3.3V Step-
Standby Power Consumption0.0174W0.0810W
ErP Lot 3/6 Ready✓
(EU) No 617/2013 Compliance✓
Average Efficiency VSB82.888%82.622%

Section C: LAMBDA

Voltage115V230V
Noise Rating (>1450 Load Combinations)19.33dBA19.14dBA
Noise Graphs

Section D: ATX

Efficiency With 10W (≤500W) or 2% (>500W) Load73.996%
Hold Up Time26.60ms
Power OK22.90ms
Power OK to DC Loss3.70ms
Test\Rail+12V5V3.3V5VSB
100ms11.8595.0363.2594.894
10ms11.5614.9803.2074.859
1ms11.4154.9503.1814.843
0.1ms11.3394.9333.1624.830

Section E: Information about DUT

Product Identification Details
BrandCorsair
ModelRM750x (ΑΤΧ v3.1)
OEM/ODMChannel Well Technology
Serial NumberA7QQA404M007FC
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)
TypeATX12V
Cable DesignFully Modular
Warranty-
Cybenetics
Dimensions (W x H x D)
Weight
Cooling140mm Fluid Dynamic Bearing Fan
(NR140HP)
Semi-Passive Operation✓ (selectable)
Cybenetics Testing Information
Lab IDCR75002406
Date of receiptMar 14, 2024
Testing DateApr 4, 2024
Report Issued DateApr 5, 2024
DUT NotesCP-9020285 (Semi-Passive Off)
Engineer Name-
Authorized By the Laboratory Technical ManagerAristeidis Bitziopoulos
Signature

Cables And Connectors(Non-accredited measurements)

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 -

Parts Description

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 sidePower specifications label

Section F: Uncertainty

Efficiency Uncertainty Estimation

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