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

RM750x Shift (ATX v3.1)

Report Number: 25PS2885A
Customer ID: 28
Lab ID: CR75002885

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)89.394%91.272%
Efficiency Graphs
Average PF (>1450 Load Combinations)0.9890.950
12V Step-
5V/3.3V Step-
Standby Power Consumption0.0376W0.0753W
ErP Lot 3/6 Ready✓
(EU) No 617/2013 Compliance✓
Average Efficiency VSB85.018%84.217%

Section C: LAMBDA

Voltage115V230V
Noise Rating (>1450 Load Combinations)15.77dBA15.77dBA
Noise Graphs

Section D: ATX

Efficiency With 10W (≤500W) or 2% (>500W) Load72.512%
Hold Up Time23.50ms
Power OK20.40ms
Power OK to DC Loss3.10ms
Test\Rail+12V5V3.3V5VSB
100ms11.8714.9583.2855.011
10ms11.6914.9333.2584.987
1ms11.6104.9203.2454.975
0.1ms11.4804.9013.2204.958

Section E: Information about DUT

Product Identification Details
BrandCorsair
ModelRM750x Shift (ATX v3.1)
OEM/ODMGreat Wall
Serial NumberA9H0D518502HIJ
Product Specifications
Manufacturer
Rated Voltage (Vrms)100-240
Rated Current (Arms)5-10
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 IDCR75002885
Date of receiptJun 13, 2025
Testing DateJul 9, 2025
Report Issued DateJul 10, 2025
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 24 pin (605mm) 1 1 16-20AWG No
4+4 pin ATX12V (650mm) 2 2 18AWG No
6+2 pin PCIe (650mm) 2 2 18AWG No
2x 6+2 pin PCIe (650mm) 2 2 18AWG No
12+2 pin PCIe (655mm) (600W) 1 1 16-24AWG No
SATA (505mm+105mm+105mm) 2 6 18AWG No
4-pin Molex (405mm+105mm+105mm+105mm) 1 4 18AWG No

Protection Features(Non-accredited measurements)

Over Power Protection ✓
Over Current (+12V) Protection ✓
Over Temperature Protection ✓
Short Circuit Protection ✓
Surge Protection ✓
Inrush Current Protection ✓
Fan Failure Protection ✗

Parts Description

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 NTC Thermistor SCK205R0 (5 Ohm @ 25°C) & Relay
Bridge Rectifier(s)
1x
APFC MOSFETs
1x Infineon IPW60R060P7 (650V, 30A @ 100°C, Rds(on): 0.060Ohm)
APFC Boost Diode
1x WeEn WNSC60D06650 (650V, 6A @ 156°C)
Bulk Cap(s)
1x Nippon Chemi-con (450V, 560uF, 2000h @ 105°C, KMW)
Main Switchers
2x STMicroelectronics STW24N60DM2 (650V, 11A @ 100°C, Rds(on): 0.200Ohm)

PFC/LLC Combo Controller

MPS HR1280

Topology Primary side: Semi-Digital, APFC, Half-Bridge & LLC Resonant Converter
Secondary side: [12V] Synchronous Rectification & [Minor Rails] DC-DC converters
Secondary Side
+12V MOSFETs 4x Diodes Incorporated DMT4002LPS (40V, 70A @ 100°C, Rds(on): 1.8mOhm)
5V & 3.3V DC-DC Converters: 4x DMT3004LPS (30V, 17A @ 70°C, Rds(on): 3.8mOhm)
PWM Controller(s): ANPEC APW7159C
Filtering Capacitors

Electrolytic:
10x Nichicon (10,000h @ 105°C, HW(M))
1x Nichicon (6,000 @ 105°C, HV(M))
1x Rubycon (4-10,000 @ 105°C, YXF)
1x Rubycon (6-10,000 @ 105°C, ZLH)
Polymer:
29x FPCAP

Supervisor IC IN1S3151-SAG
IC Driver MPS MP6924B
MCU STMicroelectronics STM32C011F6P3
Fan Model Corsair NR140HP (140mm, 12V, 0.33A, Fluid Dynamic Bearing Fan)
5VSB Circuit
Rectifier (Low Side)
1x Diodes Incorporated DMT10H009LPS (100V, 8A @ 70°C, Rds(on): 8mOhm)
Standby PWM Controller
Power Integrations TNY288GG

Photos

Top side
Top side
Power specifications label
Power 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